Heihachi Mishima is a fictional character and one of the main antagonists of Bandai Namco's Tekken series. Introduced as a boss character in the first Tekken game from 1994, Heihachi is depicted as the abusive father of Kazuya Mishima and the CEO of a military firm known as the Mishima Zaibatsu, which was founded by his own father, Jinpachi Mishima.