Kazuya Mishima (三島 一八 Mishima Kazuya?) is one of the main characters in the Tekken series. He appears in all of the Tekken games except Tekken 3, in which he only made two cameo appearances. Though seen as the protagonist and hero of Tekken, Kazuya is one of the main antagonists from the rest of the series until after Tekken 6 and later an anti-hero in Tekken 7. Most importantly, Kazuya is the son of Heihachi Mishima and Kazumi Mishima, the love interest of Jun Kazama and the father of Jin Kazama. He's also the half-brother of Lars Alexandersson, the adoptive brother of Lee Chaolan, and the grandson of Jinpachi Mishima.
In the original entry to the franchise, Kazuya was considered to be the primary protagonist, and for all intents and purposes, there was no reason to believe differently. According to differing sources (such as Tekken: The Motion Picture and a brief scene in Ling Xiaoyu's Tekken 5 ending), Kazuya was actually quite frail and timid as a boy and was the victim of years of abuse at the hands of Heihachi. Indeed, Kazuya originally entered the first King of Iron Fist Tournament in order to face off against his father, who was played up to be a corrupt corporate tyrant. Kazuya's clothing of choice, simple white pants and red gloves and footpads, even helped to draw parallels to another "mysterious loner" hero, Street Fighter's Ryu. So most people (both within the game and in real life) simply wrote Kazuya off as the cliché fighting game hero.
There was only one clue as to Kazuya's true intents and nature: his secret PS One palette swap, which turned out to be Devil.
Tekken 2 saw Kazuya's true nature revealed in full. After killing his father (or so he thought), instead of bringing justice and honor to the Mishima Zaibatsu and righting the wrongs of his father, Kazuya repeated the corrupt practices of his father and turned it into an even much more ruthless and evil organization. While Heihachi was merely ruthless (though he had some standards), Kazuya was completely void of conscience or any compassion at all. He hired assassins to eliminate innocent people for the sake of his own pleasure (such as the father of Eddy Gordo), he attempted to extort money from several businesses and many organizations, and he even went so far as to smuggle endangered animal species, and conducted genetic experiments on them (Alex and Roger). Of course, the reason for his evil deeds was because he had sold his soul to the Devil all those years ago, and had allowed the evil within him to fully consume him.
However, Kazuya still had some sense of goodness within his heart, which gained more and more strength after he first met Jun Kazama, resulting in Angel, who constantly battled his evil side, though this would turn out to be his downfall. Heihachi managed to take advantage of his son's confusion caused by this internal war and defeated him in the second King of Iron First Tournament. Kazuya was then thrown into a volcano and killed, while the Devil in his body escaped and eventually made contact with Kazuya's son, who succeeded his father as the series' new protagonist.
Of course, G Corporation eventually located Kazuya's remains and at this point, they regenerated his body and made a deal with him to remain hidden within G Corporation's labs and be tested on. Kazuya had learned from his mistakes; the next time he faced Heihachi, he wanted to be in full control of his Devil powers. Of course, this plan did not go as Kazuya intended; Heihachi ruined it by invading G Corporation and stealing their research.
Since his original appearance, Kazuya's character has gone through many transformations: From hero to villain, from villain to anti-hero. Whatever was left of his good side appears to be totally suppressed by his Devil persona. Kazuya no longer fights against his darker side, and the two seem to have come to mutual terms, as Kazuya can call upon Devil whenever he likes now (such as in his Tekken 5 introduction). In Tekken 7, Kazuya seems less cruel than in previous Tekken, he even goes so far as to be more sentimental seen, that he reproaches Heihachi for having killed his mother.
In Project X Zone 2, Kazuya maintains his behavior in the main games but is also shown to be grumpy and rude towards other characters particularly because of the feud of his family, such as his father Heihachi and his son, Jin who became his partner. He also has shown interests in the other characters' performance such as Estelle's skills in writing a book about parents and children and hunting curse monsters when they spoke to Natsu about the broken curse. Kazuya also recognizes Ryo Hazuki's father who is the master of Hazuki-ryu Ju-Jutsu when he encounters Ryo Hazuki much to his son's confusion. Kazuya also dislikes people who are trying to getting hold of his actions which Jin tries to warn them about it and a prime example shows when Phoenix Wright was encountered by them due to his role as a lawyer and detective and became nervous to make trial on courts due to his actions for murdering people in the main games as well as media reporters such as Ulala who wants to know more of the Mishima family feud. Like Jin, Kazuya is also confused when Segata Sanshiro was encountered as he recognizes both being created by the producer of their game, Katsuhiro Harada or simply referring to his surname as Harada.
At five years of age, Kazuya found out his mother died at the hands of his father and attempt to get revenge against him. Unfortunately, Kazuya was defeated immediately and thrown off a cliff by his father, who claims that his son is weak and will have to survive and climb back up if he is to be his true son as well as his successor. Kazuya survives the fall and makes a deal with the devil in order to survive solely to murder his father. In the years prior to the events of the original Tekken, Kazuya enters martial arts tournaments all over the world, becoming an undefeated champion due to the Devil Gene within him, (only Paul Phoenix ever managed a draw with him). When the first King of Iron Fist Tournament is announced, Kazuya takes the opportunity to get back at him, setting the stage for the first game.
In reality, it is revealed that Kazuya was born with devil's power through his mother, and due to a result of his revenge against his father for killing his mother, and being thrown off a cliff by him, it awakens Kazuya's Devil Gene during his deal with his devil side.
Kazuya enters the tournament and makes it to the final against Heihachi. Apathetic towards the tournament's considerable prize money, Kazuya engages his father in a vicious, bloody battle in which Kazuya emerges victorious. Kazuya then proceeds to throw Heihachi's broken body off the same cliff Heihachi threw Kazuya off many years ago and smiles with his revenge completed.
Ending Description, "A Father's Fall": Having beaten Heihachi, Kazuya picks Heihachi's body up and throws it off the cliff, and smiles in satisfaction.
By the time of the second tournament, Kazuya has been the Mishima Zaibatsu's CEO for two years and engaged in much more evil actions beyond that of Heihachi Mishima. Around the same time, Kazuya hears the news that Heihachi is coming for him and to take back the Mishima Zaibatsu. Kazuya announces the King of Iron Fist Tournament 2 in order to lure his foes out for the pleasure of destroying them. During the tournament, Kazuya encounters a contender, Jun Kazama, and impregnates her with his son before leaving her to raise the child alone. Eventually, Heihachi makes it to the final round to face Kazuya and defeats him due to a battle between the light in him, represented by Angel who was brought forth after his meeting with Jun Kazama, and the darkness within him, represented by Devil. As a last resort, Kazuya transforms into his Devil Form and continues the fight atop the roof of the Mishima Zaibatsu headquarters, but Heihachi still emerges victorious due to his training to take back the Mishima Zaibatsu. In retribution, Heihachi throws Kazuya's body into the mouth of a volcano and escapes on a helicopter as the volcano erupts.
Ending Description, "Evil Smile": Kazuya is shown to have expelled and defeated Devil. Feeling pitiful for using such strength without controlling it, Kazuya starts to walk away. However, without knowing, Devil starts to rise again and is about to kill Kazuya with his eye laser. Although, as he fires, Heihachi appears in front of Kazuya and blocks the attack. Kazuya then grins, picks up his father's body, and uses him as a human shield. Even though Devil uses many eye lasers, none of them close to harming Kazuya, instead apparently killing Heihachi. As Kazuya throws Heihachi's body and Devil hits it away, Kazuya finishes Devil off with a Dragon Uppercut, and smiles with satisfaction, having rid himself of both Devil and Heihachi.
He is shown in Jin's memory of his mother. Kazuya in the memory flashes indicating his father's cursed blood relation is influencing his bid for vengeance against the God of fighting, Ogre. He also appears in Eddy Gordo's ending as the man responsible for his parents' deaths'.
Shortly after his demise at Heihachi's hands, Kazuya is recovered by G Corporation, a cutting-edge biotech firm and rival to the Mishima Zaibatsu. With help from the scientists, Kazuya slowly learns to control the power of the Devil Gene within him over the next twenty years, but as he begins preparing to take revenge and gain power, G Corporation is raided by Tekken forces on Heihachi's orders to acquire Kazuya's remains. Kazuya ambushes the Tekken Force and promptly defeats them, promising to come for Heihachi next. Around the same time, Kazuya learns of the existence of his son, Jin Kazama, and seeks to capture him with the intention of stealing Jin's devil power.
Kazuya enters the King of Iron Fist Tournament 4, despite knowing it is a trap by Heihachi. At the seventh stage, Kazuya is slated to fight Jin, who disappears. Kazuya is declared the winner by default and sent to the final round, where he meets Heihachi and demands to know his son's whereabouts. After winning the fight, Kazuya is taken by Heihachi to Hon-Maru, a Mishima compound in the woods, where Jin is being held captive. Once inside the compound, the Devil Gene brainwashes Kazuya's mind again and tries to steal Jin's Devil power, but is unsuccessful because of Jin's Kazama blood. Kazuya regains control and awakens Jin through psychic taunts, but is unable to defeat Jin in the following fight, and knocked unconscious.
Ending Description: Heihachi and Kazuya arrive at Hon-Maru. When Kazuya sees the body of Jin, the Devil Gene takes control of his body and tells Heihachi that 20 years earlier, he lost a part of himself (which is inside Jin), and he plans to regain it back. After knocking back Heihachi with telekinesis, he attempts to absorb the Devil Gene out of Jin. However he fails and when he loses control of his power, Kazuya once again reigns dominance over himself. He yells for Jin to rise, which he does, and Jin prepares to fight his father. After defeating Jin, Kazuya walks over to his body and successfully sucks the Devil Gene out of him. In triumph, Kazuya transforms into Devil (Using an appearance from Tekken 2 with a tail and scars) once again.
Following their defeats to Jin, Kazuya and Heihachi are ambushed by a squad of Jack-4s, who have been sent by G Corporation to destroy Kazuya as they no longer need him. Kazuya and Heihachi are forced to work together to fight the Jacks until Kazuya throws Heihachi into a group of Jack robots and leaves him to die in the ensuing explosion. When a mysterious man takes over the Mishima Zaibatsu and announces the King of Iron Fist Tournament 5, Kazuya enters to track down those who betrayed him and discover the sponsor's identity.
During the tournament, Kazuya crosses paths with Raven, who calls Kazuya a "coward who ran away from danger". He defeats Raven and interrogates him, it is during this little conversation that Kazuya finally learns who is holding the tournament: his grandfather, Jinpachi Mishima. It is unknown how far Kazuya progressed through the tournament.
Ending Description: Kazuya defeats and holds the dying Jinpachi in his arms. Kazuya reflects on his youth, spent affectionately training with his beloved grandfather. After a moment of nostalgia, Kazuya's true side surfaces, one of his eyes turn red alerting Jinpachi who is too exhausted to react, and he punches through Jinpachi's chest, destroying him heartlessly and turning him to dust. Satisfied with himself, Kazuya grins and looks back, as if ready to kill his next opponent, with an evil laugh.
Despite not winning the fifth tournament, Kazuya discovers the division of G Corporation that tried to kill him, thinking that he may be too much of a threat; in retaliation, he kills them all in revenge to gain all the power for himself, becoming the head of the company and opposing the Mishima Zaibatsu, led by Jin who has begun world conquest and declared war on the world to destroy a greater evil. By this time, the world's population sees G Corporation as its only savior, though Kazuya plans to destroy Jin and take over the world himself with an iron fist. Kazuya uses the company's influence to his advantage: to stop Jin from taking over his plans for world domination, Kazuya places a bounty on Jin's head for whoever can manage to capture him dead or alive and decides to enter the King of Iron Fist Tournament 6 (announced by Jin) to settle the score once and for all with his son.
During the tournament, Kazuya along with the G Corporation arrive at a remote area somewhere in the desert and he feels an overwhelming power within a large corridor/temple and is soon confronted by an entity named Azazel, who is believed to be the reason for the Devil Gene but they are interrupted by the arrival of Jin who has also felt this power and believes that he must win this battle to save the world and destroy the Mishima curse or bloodline but he believes that in order to achieve this, Kazuya, Azazel, and himself must all die. Kazuya later encounters Lars Alexandersson, a rogue Tekken Force leader who he discovers to be his half-brother. The battle ends without an outcome with Kazuya merely leaving and warning his half-brother about their fate being Mishima.
Ending Description: Kazuya is shown leaving Azazel's temple when the Tekken Force suddenly appear out of nowhere to destroy Kazuya (possibly a mission from Jin Kazama). In order to prove his dominance, Kazuya suddenly shows the unconscious body of Devil Jin in his hands to the crowd. Seeing this as a "Mission Accomplished" sign, the Tekken Force then lay down their weapons and salute him. Kazuya grins and laughs evilly, knowing that he has now defeated Jin and can gain more power.
Kazuya was raised as the heir to the Mishima Zaibatsu but rebelled against his father Heihachi. After awakening the power of the devil within him, he's finally able to control it.
Several decades ago, Kazuya confronted his father Heihachi for the murder of his mother. He desperately tried to fight his father, but Heihachi easily overpowered and defeated the boy. Kazuya was then tossed off a cliff.
In the present day, Kazuya watches from G Corporation tower as Heihachi announces his return and the announcement of the King Iron Fist Tournament 7, not surprised that his father is still alive. Learning that his father is searching for Jin, Kazuya tells his subordinates to hasten the preparations for his plans.
Later, Kazuya sends his Jack-6 army to kill Heihachi, who happens to be targeted by Akuma at the Mishima Dojo. However, after learning that Akuma was sent by his mother to kill both Heihachi and Kazuya himself, he disbelieves it, then maniacally laughs and deems his mother's task to kill him and Heihachi as absurd. He also wants to know how powerful Akuma is.
In the same time he suspects Heihachi faking his death at the hands of Akuma, he is soon confronted by Akuma on a later day, and they fight on top of G Corporation Tower after he dismissed his men not to engage Akuma due to his powers can beat them easily. Overwhelmed by his opponent's amazing powers, Kazuya transforms into the devil to increase his powers, not knowing that his devil form has been caught on camera by the Mishima Zaibatsu. Kazuya and Akuma are then attacked by Heihachi via a laser attack from a satellite that destroyed G Corporation tower. Although Kazuya survives the attack, public opinion is turned against G Corporation due to his devil form exposed to the world. Vowing to have the last laugh as a counteract on Heihachi, Kazuya shoots a Devil Blaster at Heihachi's satellite, causing it to plummet down to Earth and destroy an entire city. The world mistakenly believes that the Mishima Zaibatsu destroyed its own satellite, and public opinion is on G Corporation's side once again.
A few hours later, Kazuya finally confronts Heihachi inside a volcano. As they fight, Kazuya changes into his devil form and defeats Heihachi. But his father musters all of his remaining strength and defeats him, causing him to revert back to his human form. Even though the two of them have become severely weakened at this point, they continue to exchange blows when Heihachi head butts Kazuya. Looking up at the man he has always hated for all of his life, Kazuya finally kills Heihachi with a fatal blow to the chest. He then takes his father's corpse and tosses him into a river of lava.
Shortly afterwards, Kazuya is once again confronted by Akuma, who has also survived the attack at G Corporation tower. Transforming into the devil once again, Kazuya fights Akuma in a heated battle. In the end, Kazuya fires a powerful Devil Blaster at Akuma's Hadoken, and the collision destroyed the volcanic surroundings.
Although the final outcome of the battle is unknown, Kazuya's influence over the world is still present, as G Corporation is not ending the war and various nations face an incoming invasion. Considering Jin is asked by Lars and Lee to defeat and kill his father once and for all, it is assumed that Kazuya not only survived, but actually defeated Akuma.
Kazuya appears in Tekken: The Motion Picture as one of the movie's main characters, exploring his relationship with Jun Kazama and his motivations for entering the 1st King of The Iron Fist Tournament.
Ending Description: Jin is defeated while Kazuya stands over him. He then snarls at a weakened Jin and then proceeds to walk away. Suddenly, Jin rises with vengeance (possibly showing Devil Jin spawning). Kazuya promptly turns around with a smirk and prepares for a fight.
Kazuya in Jin's Ending: Jin picks up an unconscious body of his father and archenemy, Kazuya. Jin is about to finish him with a single punch, only to have paused and dropped Kazuya's body back in the ground. He is then seen with his hands shaking as he falls down to his knees. This restraint is possibly due to "Kazama blood" influence or his mother's spirit taking control of him.
Kazuya in Angel's Ending: Angel stands over his unconscious body, puts her hand over his forehead and takes away the evil spirit. When he gains consciousness and wakes up, Angel is nowhere to be found.
In the 2010 live-action film Tekken, Kazuya is the main antagonist and is portrayed by American actor Ian Anthony Dale. In this version, he has facial hair and bears none of the video game character's bodily scars. Kazuya is Heihachi's right-hand man in Tekken Corporation, wishing to take over his father's company. Also, rather than being a hand-to-hand combatant, Kazuya relies on melee weapons such as axes and Eskrima sticks. Furthermore, the Devil Gene subplot is not used in the film. At the end of the tournament, he is defeated by his son, Jin Kazama.
Kazuya appears in the crossover game Street Fighter X Tekken. He was first revealed as one of the first few playable characters at San Diego Comic-Con International in 2010, along with Nina Williams, Ryu, and Chun-Li.
In the game, Kazuya (who is still the head of G Corporation) learns of the mysterious box known as the Pandora, which crash-lands in the Antarctic. He then plans to use the box's power to increase his Devil Gene, defeat his son Jin and take control of the Mishima Zaibatsu in his quest for power and to take over the world. At that moment, an old foe appears from the shadows: Nina Williams. Nina decides to accompany Kazuya on his trip to the Antartic. Kazuya accepts her assistance, but due to her relationship with the Mishima Zaibatsu and Jin, she has to do everything Kazuya tells her to despite the fact that she hates him.
During their journey, Kazuya and Nina run into Ryu and Ken Masters. Nina suggests to leave them be, not wanting to bother them, but Kazuya takes an interest in the two warriors and their power. Realizing that he could "use a warm-up" before arriving at the Antartic, he challenges them both to test his devil powers and their strength, much to Nina's dismay.
Ending Description: After defeating Akuma, Pandora's box opens. Kazuya and Nina then walk up to the box. Suddenly, Nina walks ahead of Kazuya and stands before him, much to his confusion. She then tells him that he can't have the box and that someone else wants it more, possibly Jin. Knowing her true intentions and that she means his son, Kazuya summons his soldiers from G Corporation, who had camouflaged themselves in the snow in case something like this would happen. Nina then runs and the screen immediately turns black with gunshots fired. Then it's revealed that all the soldiers have been defeated quickly, presumably Nina's doing. Despite her treachery, Kazuya still obtains the box, knowing that this is all that truly matters, he plans to take it back to his company in order to fully restore his body as well as the Devil Gene resting inside him.
In Tekken: Blood Vengeance, Kazuya is one of the film's main antagonists. He's still the head of G Corporation, as well as the boss of Anna Williams, who he orders to recruit Ling Xiaoyu as a spy (knowing that Jin would never harm Xiaoyu) to gather information on Jin's old school friend, Shin Kamiya. He later arrives in Kyoto at Kyoto Castle, where he finds Xiaoyu, Shin, Jin, Alisa Bosconovitch and a surprisingly alive Heihachi. After Heihachi ruthlessly kills Shin, Kazuya, Jin, and Heihachi have an epic three-way brawl and he's rendered unconscious by his father. After Heihachi's seemingly defeated, Kazuya confronts his son. After Jin declares to him that Kyoto will be his grave, Kazuya transforms into Devil Kazuya and smashes his son through the wall, taking the battle outside. Jin attempts to fight back, but his father easily defeats him. Devil Kazuya then urges him to transform into Devil Jin. Xiaoyu begs Jin not to, but Alisa puts her out of harm's way by declaring to take down Devil Kazuya by herself. However, Jin shuts her down immediately afterwards. Annoyed that Jin has been using a "doll" to do his work, Devil Kazuya stamps on Alisa and, with one single stomp crushes her in half, throwing Xiaoyu into despair. Afterwards, Jin finally transforms into a Devil, though his form is not yet complete as he battles his father. Devil Kazuya then tells his son that he's left with no choice but to finish him if he wants to end the Mishima Bloodline. He then easily defeats him and immediately believes that he's victorious. But suddenly, Jin finally takes control of his new form, surprising Devil Kazuya. His Devil powers now utilized, he finally defeats Devil Kazuya, telling his father that the Devil's power is his and sending him plummeting into a nearby waterfall. Devil Kazuya then tells his son that this isn't over before doing so.
Kazuya returns as a playable character in Tekken Tag Tournament 2. He retains his moveset from Tekken 6 with new moves added as both of his normal and devil forms are now one due to having the same fighting style as well as matching the current story that states how Kazuya attained full control of Devil ever since Tekken 4.
Ending Description: After Kazuya defeats Unknown, he absorbs her power (represented by the signature purple ooze on her body vanishing and washing over Kazuya instead.) Kazuya transforms into his Devil Form from Tekken: Blood Vengeance, laughing madly and triumphantly as he flies into the night. The absorption is similar to how Devil Jin absorbs Jinpachi's powers in Tekken 5.
- Lee Chaolan
- Bruce Irvin
- Heihachi Mishima
- Jun Kazama
- Jin Kazama
- Devil Jin
- Lars Alexandersson
- Jinpachi Mishima
- Anna Williams
Kazuya appears in Tekken Revolution as a playable character.
Kazuya appears as a playable character in Tekken Card Tournament. As his in-game information reads, he becomes more powerful and his cards' abilities activate when his health is at a set amount, which is a drawback since his best cards require very low HP in order to activate. He also specializes in dealing relatively powerful attacks, and can drain his opponent's health and draw quickly, but sometimes at the cost of his own health. He can also take away parries, and can weaken and parry his opponent's attacks, ideally punch attacks, and can strike without worry thanks to his cards that give him protection when striking. He also obviously has little to no basic cards that grant him healing abilities. Overall, he has good strength and great abilities, and a slightly roughly average draw ability, but he's recommended for anyone that doesn't mind losing HP to tap into his more powerful abilities.
Kazuya is the main protagonist of the prequel to 2010 film.
Intro and Win Quotes
|Pre-fight Quotes||Win Quotes|
|So it's you. (貴様か。 kisama ka)||Pathetic. (話にならんな！ hanashi ni naran na)|
|So you've come. (お前か。 omae ka)||Get lost! (消えろ！ kiero)|
|Pitiful. (くだらん。 kudaran)||Die. (ここで死ね！ koko de shine)|
Note: Namco's translation is not the literal translation.
- Jinpachi Mishima - His deceased grandfather.
- Heihachi Mishima - His now deceased father and archenemy. Killed him at their final battle in The Mishima Saga in Tekken 7.
- Kazumi Mishima - His deceased mother.
- Jun Kazama - His son's mother whom he mysteriously impregnated.
- Jin Kazama - His son and enemy. In Tekken 7, Kazuya seems to no longer want to hurt his son, it may be that Kazuya wants to reconcile with Jin despite that they always have their Devil Gene in them. His uneasy partner in Project X Zone 2 (non-canon).
- Devil Jin - Rival / his son's devil form.
- Lee Chaolan - His adoptive younger brother and rival.
- Lars Alexandersson - His younger half-brother.
- Devil Kazuya - His transformation to his devil form.
- Paul Phoenix - His considered rival.
- Anna Williams - His bodyguard, best friend and secretary in Tekken 2, Tekken 6 and Tekken: Blood Vengeance.
- Bruce Irvin - His bodyguard, friend and second-in-command in Tekken 2 and Tekken 6.
- Ganryu - His bodyguard in Tekken 2.
- Dr. Bosconovitch - Kazuya ordered him to create Alex and Roger before Tekken 2.
- Roger - Kazuya ordered Bosconovitch to create him before Tekken 2.
- Alex - Kazuya ordered Bosconovitch to create him in Tekken 2.
- Eddy Gordo - Kazuya killed Eddy's parents and framed Eddy for their murder.
- Christie Monteiro - Due to Eddy's tragic life Kazuya caused on him, Christie's becomes involved this situation.
- Leo Kliesen - Witnesses Kazuya being responsible for her mother's death, becoming her enemy.
- Baek Doo San - He defeated him in the Tekken: The Motion Picture (non-canon).
- Lei Wulong - Lei attempted to arrest Kazuya in Tekken 2, and also Tekken 6 since he'd been known Kazuya has up to something dirty and tyrannical all along in an attempt to take over Zaibatsu again.
- Michelle Chang - Kazuya defeated her in Tekken: The Motion Picture (non-canon).
- Ling Xiaoyu - She went to save Kazuya in Tekken 5 and his former employee in Tekken: Blood Vengeance (non-canon).
- Armor King - Kazuya wants to get revenge on him for helping G Corporation's test subjects escape.
- Jack-6 - His henchman in Tekken 6.
- Nina Williams - His partner in Street Fighter X Tekken (non-canon).
- Emma Kliesen - One of Kazuya's main victims during his takeover of G Corporation. He is a witness for killing her.
- Shin Kamiya - Kazuya hunted him down until realized he is just a veteran of M-CELL experiment in Tekken: Blood Vengeance (non-canon).
- Jane - She helped Kazuya create Jack-6 and she is a friend.
- Angel - She tried to save Kazuya's soul during Tekken 2.
- Ryu and Ken Masters - His rivals in Street Fighter X Tekken (non-canon). An enemy in Namco x Capcom while as Devil Kazuya, and situational allies in Project X Zone 2.
- Akuma - Kazumi ordered Akuma to kill Kazuya and Heihachi should she fail to do so in Tekken 7.
- Lucky Chloe - His employee.
- Shaheen - Kazuya was responsible for Shaheen's close friend's death and Shaheen made a decision on sparing him instead of taking revenge. But when Shaheen saw him transform into his devil form, he vows to apprehend Kazuya.
Kazuya is one of the most basic characters in the series. His moveset furthers powerful single strikes, and despite them being mostly slow and/or unsafe on block, they do a lot of raw damage. Most of Kazuya's best moves are predictable and hard to surprise with, so his most rewarding method of play is centered around block punishment. In fact, Kazuya's greatest assets are his punishing moves, like the Electric Wind Godfist, one of the best, if not the best punisher in every game he's in. In summation, he's overall best used as a defensive character, and a good timing is required to main him.
Starting with Tekken Tag Tournament 2, Kazuya gains the ability to morph into his Devil form at will. His Devil form gives him some demonic powers, like the ability to fly and shoot laser beams. Also changes slightly his moveset, most notably giving him the ability to perform the Twin Pistons move from a standing position, which can be used as a solid launcher move for juggle combos. However, he lost most of D/F+1 follow-ups in Devil Form.
Kazuya fights using Mishima Style Fighting Karate. In a style similar to Shotokan karate.
- Kazuya is the winner of the first King of Iron Fist Tournament.
- Possibly because of the Devil Gene, Kazuya's left eye glows red. However, it is also a possibility that Kazuya gained this red eye due to the reconstruction G-Corporation implemented on him; however, Devil Jin's eyes glow red at times too.
- Despite fan misconception, Kazuya does not consider Jun Kazama his wife. There has never been any confirmation on his civil status either.
- Kazuya's fighting style is heavily based on Shotokan style of karate.
- Kazuya's name is written as 三島 一八 (Mishima Kazuya) in Kanji and as みしま かずや in Hiragana.
- The kanji individually mean: one (一 kazu); eight (八 ya). Also, the surname of all members of the Mishima family 三島 (Mishima) mean "third island".
- In Tekken 5, Kazuya can be customized to resemble Devil's appearance in Tekken Tag Tournament 2 by adding Third eye, Devil Wings, and Devil Tail with 1P costume.
- In Tekken 6, if one customizes Kazuya with "Neo Sunglasses" and press u+1+2, he will take off the glasses and attack his opponent using Devil's eye beam.
- Part of Kazuya's techniques are performed by the same motion actor as Jin Kazama, Ryu Narushima (成嶋 竜 Narushima Ryū)
- In Heihachi's Tekken 2 ending, Kazuya is wearing his purple tuxedo outfit (his extra outfit). However, in the Tekken 4 intro, he is shown wearing his 1P outfit.
- According to Xenosaga Episode I's bonus e-mails, Kazuya is friends with Shion Uzuki, the primary protagonist of the Xenosaga series. At one point in the first game, Kazuya sends Shion an email advertising Tekken 4 as a sort of Namco universe Easter egg.
- In Street Fighter X Tekken, He and his son, Jin's karate belts are up to the knee while in their normal game counterpart, their belts are below the knee.
- Kazuya is playable in every Tekken game with the exception of Tekken 3 because he was believed to be dead.
- Kazuya is the only Tekken character that has appeared in all motion pictures based on the game franchise. He has appeared in Tekken: The Motion Picture, Tekken (2010 film), Tekken: Blood Vengeance, Street Fighter X Tekken: The Devil Within, Tekken Tag Tournament 2 live-action short film, and Tekken: Kazuya's Revenge.
- Also, he is the character that has been portrayed the most as a live-action character. He has been portrayed by 4 actors; Ian Anthony Dale, Mark Musashi, Kefi Abrikh and Kane Kosugi.
- Kazuya's role in the 2010 film seems to be the same as Lee Chaolan's role in Tekken: The Motion Picture.
- In Tekken: The Motion Picture, Lee was raised by Heihachi while in the 2010 film, it is Kazuya who was raised by Heihachi instead.
- In Tekken: The Motion Picture, Lee tries to kill Kazuya while in the 2010 film, Kazuya tries to kill Jin Kazama.
- In Tekken: The Motion Picture, Lee seduces both Nina and Anna Williams while in the 2010 film, it is Kazuya who makes out with the Williams sisters.
- Kazuya in the 2010 film and Lee in Tekken: The Motion Picture are upset that Heihachi refuses to give his corporation to them.
- Both are ultimately defeated by the characters they try to kill. Lee is defeated by Kazuya in Tekken: The Motion Picture, while Kazuya in the 2010 film is defeated by Jin Kazama.
- After his crossover debut as an NPC Devil Form in Namco x Capcom, Kazuya (with his ability to change into his Devil Form) finally made his playable debut in Project X Zone 2, paired with his son, Jin.
- In Square's fighting game, Ehrgeiz: God Bless the Ring. Ken "Godhand" Mishima is similar to Kazuya in terms of his physical appearance and the same fighting style which he was inspired by the Mishima Fighters in the game.
- Interestingly, most of his moves are based in Kazuya's moveset which he gains his "Dragon Uppercut", "Stonehead" "Rising Sun", Spinning Demon, Demon Scissors, Ultimate Tackle, Twin Pistons, Lightning Uppercut and his unblockable move, the Lightning Screw Uppercut. However, Ken also gains other characters' moves such as Heihachi's Hell Axle and his Demon Uppercut, Hwoarang's Hunting Hawk and Paul Phoenix's Bone Breaker and his unblockable move, Burning Fist.
- Ken has a blue lightning similar to Kazuya's when damaging his opponents as well as doing a reversal to avoid being attacked.
- Both men also gained scars on their chest. In Ken's case, he gains two bullet scars on each side of his chest.
- Both men always wear fingerless gloves with a pyramid pattern at the center during fights. (Kazuya's gloves are red while Ken's gloves are black as his right arm is replaced with an arm gun)
- However, Ken's voice actor in the game is Joji Nakata which is Kazuya's previous voice actor from Tekken until Tekken Tag Tournament.
- One of his knockout grunts is also from Kazuya in his appearance in Tekken and Tekken 2.
- Cloud Strife from Final Fantasy VII who is a playable character in the same game utilizes Kazuya's Demon Scissors, Flash Punch Combo and Dragon Uppercut respectively as his fighting style while Vincent Valentine another character from Final Fantasy VII and also a playable character in the same game utilizes Kazuya's moveset but also gains both Paul Phoenix's Bone Breaker and Hwoarang's Hunting Hawk and his Firecracker.
- If you pick Kazuya and Devil in Tekken Tag Tournament, then if you change character during the fight, Kazuya will be transformed in Devil and vice versa.
- He is the main character of the game.
- His sub-boss is Lee Chaolan.
- He is Lee Chaolan's sub-boss.
- Was the only character with a third costume.
- He has the same voice actor as Lee Chaolan.
- Once again, he remains the main character of the game.
- Is the semi-boss and main antagonist of the game.
- Roger and Heihachi Mishima are his sub-bosses.
- Still the only character with a third costume.
- Has the same fighting stance as Baek, Devil, and Angel.
- To unlock, one has to beat Arcade mode with every default character, then one hidden character.
- He appears in the arcade opening scene and in a photo in Eddy Gordo's ending.
- He is replaced by his son (due to his father Heihachi Mishima throwing him in a volcano).
- He can be unlocked by beating the game with 7 different characters.
- He has interludes with Hwoarang, Eddy, Jin, and Heihachi.
- When paired up with Devil, they will morph into each other instead of tagging out.
- He is a supporting antagonist and the boss of the third level of the Tekken Force mini game.
- Also, he is one of the antagonists alongside Heihachi in the main story of the game.
- His Tekken 4 ending is the counterpart of Jin's Tekken 4 ending.
- His sub-bosses are Raven and Heihachi.
- He is a sub-boss of Eddy, Heihachi, Bruce, and Lee.
- His childhood self appears in Xiaoyu's animated ending before being thrown by his father Heihachi.
- He also appears in Heihachi's ending where he was bound in chains along with his grandfather, Jinpachi and his son, Jin in a space rocket.
- Heihachi is his sub-boss.
- His final boss is Devil Jin.
- Is arguably considered one of the antagonists alongside Jin and Azazel due to the fact that he is one of the two "Evil Stars" alongside Jin and responsible for the unsealing of Azazel.
- Kazuya has a third outfit which appears to be G-Corporation body armor.
- He can be customised as one of his 2P outfits in T1, T2, and T4. A certain yakuza member, Heihachi (in younger years), Akuma from the Street Fighter series, Joker (without makeup) from Batman, Freddy Krueger from the Nightmare on Elm Street series, and Geese Howard from SNK's Fatal Fury series.
- In Heihachi and Kuma's ending, he and his son Jin are bound inside the spaceship before his father releases Jin in space. The main differences of the two endings are, Kazuya is able to kick his father from his back before they turned into shooting stars and the other has been released in space by Kuma before he accidentally clawed his own space suit. He also appears in Lee's ending along with his father and his son Jin are bound in a bundle of fireworks in his primary outfit.
- In the Scenario Campaign mode, he is the boss of the second half of the G Corporation, Millennium Tower Heliport and the first half of Azazel's Temple, Central Corridor.
- During Scenario Campaign mode, Kazuya wears his purple military gear from the arcade and console opening in Tekken 6 where he gets off the helicopter.
- Kazuya's Super Art was the "Devil's Beam" and also the name of his son's Super Art that he hits his opponents in three consecutive punches and hits them with a red beam. His Cross Art, however, was his 10-hit combo from his Tekken 2 as the blue lightning were embedded from his punches along with his Dragon Uppercut.
- In Tekken 7, his Super Art becomes his Rage Art but minor changes as he only hit his opponents in two punches instead of three but in blue lightning instead of purple miasma as he hits them with a red beam while briefly transforms into Devil Kazuya's in-game transformation before reverting back to his normal state after usage.
- Kazuya is voiced by Jordan Byrne for this game as his Tekken: Blood Vengeance voice actor, Kyle Hebert currently voices Ryu in the game.
- In the first trailer of this game, Kazuya wears his CEO outfit from his arcade opening in Tekken 6 but the color of his outfit was black instead of white. He also wears this outfit against M. Bison while having an unlikely alliance with his son, Jin in the fourth and final episode of the trailer for PS Vita.
- His moves are also used by Kuro.
- His iconic purple suit is available in as customization items after being unlocking by defeating gold-plate enemies in either Arcade Battle or Ghost Battle.
- He appears in Lars' ending and the last part of Angel's ending wearing his primary outfit.
- In the E3 2013 Debut trailer for Tekken Revolution, Kazuya is quoted as saying, "With the Power I have Obtained, Overwhelming and Absolute." (俺は手に入れた、圧倒的な力を Ore wa te ni ireta, attō-teki na chikara wo). This was taken from his lines from the Scenario Campaign prologue in Tekken 6.
- His critical arts are Rising Uppercut, Abolishing Fist, Spinning Demon to Left Hook and Left Splits Kick. His special art is Kumo Kiri.
- His DLC costumes are his iconic purple suit (2P costume), his military gear from Tekken 6 (using the Tekken Tag Tournament 2 Armored Gear models), and a hakama similar to his father Heihachi's with a tiger design emblazoned on them.
- Kazuya's new costume looks the same as his old costume from the Tekken Tag Tournament intro, and the costume from his Tekken Tag Tournament 2 artwork by Shunya Yamashita.
- Rumoured to be one of the main protagonists or a deuteragonist of the game. Though he could also be an antagonist due to his default costume being the same one he wore when he was in charge of ruling the Mishima Zaibatsu.This could mean that Kazuya took control over both the Zaibatsu and G-Corporation. However, it is confirmed that Heihachi returned and manage to reclaim Zaibatsu before Kazuya does.
- During the opening sequence in his fight with Heihachi, Kazuya glows in purple miasma instead of blue lightning in the game. In Street Fighter X Tekken, He also glows in purple miasma during his execution of his Super Art.
- In the near end of the opening sequence, Kazuya gains a third eye and hits his father with a red laser without the ability to transform into a devil. But in-game, he transforms into a devil.
- In Akuma's reveal trailer in the updated version, Kazuya was unaware that his beloved mother, Kazumi, had attempted to kill him along with his father due to their absolute power and dominance when she spoke with Akuma to kill them both prior to the first game.
- In the last part of the trailer, Kazuya attempts to destroy Akuma's Hadoken with a single punch.
- In the story mode, Kazuya faces off against Akuma wearing his Tekken: Blood Vengeance attire at the rooftop of the G Corporation Headquarters. After hearing his mother's attempt to kill both himself and Heihachi from him.
- During Story Mode after Kazuya heard about his mother's attempt to kill both himself and Heihachi from Akuma, both of his eyes are now brown minus the red left eye.
- In the E3 trailer and it's arcade opening, Kazuya is depicted wearing his Tekken 5 primary outfit instead of his new main outfit.
- In the story mode, however, he wears this outfit at the start of Tekken 5 instead of his primary outfit in Tekken 4 when he fought off some Jack-4's.
- He and his son, Jin can be customized as Ryu from the Street Fighter series as the karate gi is dark blue but short sleeved. Both also wears his signature red headband.