Yami Marik Evil, evil EVIL!!! Really, completely, far worse than Yami Bakura. He was born of Marik's hate and anger. He eventually expels Marik from his own body. He likes to taunt others and mock them, he enjoys painful shadow games and causing others grief. He wants nothing but power and feels no loyalty to anyone.
Age: ??? I don't think split personalities really have ages... he's existed for 6-8 years.