- J.G. Quintel (Mordecai / Hi-Five Ghost (voice))
- William Salyers (Rigby (voice))
- Sam Marin (Benson / Pops / Muscle Man (voice))
- Mark Hamill (Skips (voice))
- Minty Lewis (Eileen (voice))
- Janie Haddad Tompkins (Margaret (voice))
Regular Show: The Lost Tapes — S1E8
Episode: Beginson
Air Date: 2026-05-20
Overview
Benson gets booted out of Heir to the Throne.