Andrei Mavoski

"my name's An

Trivia:

Andrei's season one appearance is more similar to Christophe from the south park movie while his later season appearances are more like Sniper from TF2 but without the bush hat and glasses.

Andrei's Demon who he shares his body with is named Azrael, after the Angel of death from the Christian faith.

Andrei's abilities were mostly unexplained until season 2 episode 8 when it was revealed that he was the grim reaper