8 Season
259 Episode
Regular Show - Season 3 Episode 29 Muscle Mentor
It's anything but.
After getting fired by Benson, Rigby goes into the mentor program and Muscle Man turns out to be his mentor, things don't go as planned.
- Year: 2017
- Country: United States of America
- Genre: Animation, Comedy
- Studio: Cartoon Network
- Keyword: time travel, racoon, slacker, anthropomorphism, park, high school friends
- Director: J.G. Quintel
- Cast: J.G. Quintel, William Salyers, Mark Hamill, Sam Marin, Minty Lewis, Matthew Mercer