Main Cast[]
- David Henrie as Clarence and Mr. Reese
- Harrison Fahn as Jeff
- Jim Carrey as Sumo
- Casey Affleck as Belson
- Sophie McSera as Mary and Ms. Baker
- Peter Rida Michail as Juke
Uncredited[]
- Peter Rida Michail as Leslie
- Cary-Hiroyuki Tagawa as Hector
- Yuri Lowenthal as Tina Rex
- Aaron Springer as Human Clarence
Non-speaking roles[]
- Chad
- Sumo's Father
- Sumo's Mother
- Brady
- Percy
- Kimby
All items (4)