The bodyguard of Chaozu, Tenshinhan is the strongest human fighter (or Kuririn could be the strongest... It's debatable, though). He has two normal eyes, and then one extra eye above them that doesn't seem to have any use. He usually hangs around his little buddy Chaozu, and doesn't let anyone mess with him. He was killed during the Vegeta Saga by Nappa, and was resurected by a wish made with the Dragon Balls. By the end of the Cell Saga, he (along with Chaozu) tells the other Z fighters that they'll probably never see him again, only to show up for a brief time during the Buu Saga