Scorpion

Scorpion is an good guy allied with Raiden and the special forces. He and his family and clan were killed by the sorcerer Quan Chi. Quan Chi restored Scorpion and he was then a wraith/undead ninja. Quan Chi told Scorpion that Sub-Zero killed his family and clan. Scorpion wanted to kill Sub-Zero and did. He is now a human and he killed Quan Chi.