Satan, A.K.A the Devil or Mr. Zebub, is the lord of darkness and the king of Hell. He can take the form of a devilish, demonic creature, a Teddy Ruxpin doll, and several men. He is best portrayed by Malcolm Ray. Prior to his appearance, Bennett the Sage was said the be the devil, as shown in the Nostalgia Critic's review of Care Bears 2 (though it was revealed that this was just Sage screwing with the Critic). He has a daughter named Evilina.
- The Nerd vs. NC: The Final Battle (debut)
- Halloween '08 Special
- Care Bears 2 (as Bennett The Sage, non-existent)
- Son of the Mask
- The Cat in the Hat
- Ghost Rider 2
- Atop the Fourth Wall: 200th Episode (as That Guy With The Glasses)
- Legend of Zorro
- Event Horizon
- The Cinema Snob: The Passion of the Christ
- The Adventures of Rocky and Bullwinkle
- The Origin of Santa Christ (still shot only)
- I'll Be Home For Christmas
- The 2017 NC intro
- The 2018 NC intro
- Alvin and the Chipmunks: Chipwrecked
- Jack and Jill
- 2018 NostalgiaWeen Intro (animated)
- X-Month Intro (animated)
- X-Men Origins: Wolverine
- The 2019 NC Intro
- In the Son of the Mask review, Satan is shown to be married to Kim Kardashian and that she is Evilina's mother.
- Satan is currently in possession of the Critic’s soul due to him exchanging it for a good General Zod impersonation.
- Despite his name and title, Satan is shown to be a fellow ally to the Critic, helping him defeat both M. Night Shyamalan and Peter Soulless.
- Satan could be responsible for some of the Critic’s early revivals, despite his multiple deaths. In Scooby Doo: The Mystery Begins, it is revealed that a pixelated fairy brings back anyone from the Channel Awesome team who has died, meaning that Satan could no longer be responsible for the later resurrections.