8 Season
259 Episode
Regular Show - Season 3 Episode 29 Muscle Mentor (2017)
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.
- Country : United States of America
- Genre : Animation, Comedy
- Studio : Cartoon Network
- Director : J.G. Quintel
- Cast : J.G. Quintel, William Salyers, Mark Hamill, Sam Marin, Minty Lewis, Matthew Mercer
