Nemo the Anti-Christ is a character in American Dad!. He is the main antagonist in the episodes "Season's Beatings" and "Rapture's Delight". He was Jeff and Hayley's adopted son but is actually the Anti-Christ, the son of Satan.
The Darken Gathering[]
The Anti-Christ with his fellow fox villains under the leadership of James Woods have joined The Darken Gathering to take over the 21st century Fox Studios. He is attempting to find out how to properly animate American Dad for creating an episode where the demon seal is broken releasing entire armies of the evil created spawns from Satan to make the Multi-Universe into their true paradise.