Mr. Kazama is Jun's younger brother and a Japanese Dojo owner. The only information about him is that he is Asuka's father, and he was hospitalized by Feng Wei. The reason Asuka entered the tournament was to get revenge from Feng Wei for hurting her father. He also made an appearance in the Online Tekken Comic, it is unknown if his appearance in said comic is canon or not.
Asuka Kazama - Daughter.
Jun Kazama - Older Sister.
Jin Kazama - Nephew.
Unknown - Younger Sister. (Rumored)
Feng Wei - was attacked by him at his dojo and was sent to the hospital afterwards.