Heihachi Mishima is one of the most ruthless and dangerous characters in all of Tekken, often going to extreme lengths to get what he wants, even if it means putting his own family on the line. Although he doesn't actually appear in Tekken 8, Heihachi's massive influence on the world can still be felt through many of the characters. Although his daughter Reina showcases a bit of her father's smug and intimidating personality, this is only a glimpse into what the man himself was actually like when he was still alive and kicking.