He is a living severed hand that is capable of talking through a skull tattoo. He also has other tattoos, such as the word "HATE" inscribed on his fingers, and a cobweb tatto just below his wrist.
- "The Lesson": He is in detention.
- "The Weirdo": He is visible for a few seconds standing with the other detention bullies in Gumball, Darwin, and Sussie's hallucinations.
- "The Sucker": He is seen hanging out with Julius, Scythe, and Mowdown and tries to make Darwin one of them.
- "Vote Gumball…and Anyone?": He runs for school president along with Julius and the other delinquents.
- "Issue 7"
Gumball: Ugh! Even her voice is gross. Wait, hang on. How come she can hear our secret thoughts?
Reaper: 'Cause you're talking out loud, homie.
Gumball: Yeah, that makes more sense.
Reaper: [High-pitched scream] Didn't hurt.
|—After being kicked in "The Sucker"|
- The tattoo of the word "HATE" may be a reference to Eddie from The Rocky Horror Picture Show, who has the word "LOVE" tattooed across his right knuckles and "HATE" across his left.
- The show is inconsistent with whether he is a right hand or a left hand.