Satan (under the guise of "Jerry Belvedere") is the main antagonist of the TV series "Reaper" and is portrayed as a smooth-talking gentleman with a joking personality who is well-aware of the fact he is destined to lose to God but is determined to cause as much suffering in the world as possible before his downfall and sees the character of Sam as being an important tool in doing so.

Satan has control over Sam due to a pact he made with Sam's parents before his birth and employs him as his personal "reaper" - tasked with hunting down escaped souls and bringing back to Hell, Satan goes out of his way to convince Sam that he is doing good for the world by ridding it of evil souls.