Regular Show ยท S04E14
Ace Balthazar Lives
Summary
Mordecai and Rigby want to reunite the band Adrenaline.
Guest stars
- Minty Lewis as Eileen (voice)
- Janie Haddad Tompkins as Margaret / Witness #1 (voice)
- Julian Holloway as TV Narrator / Security Guard (voice)
- Jeff Bennett as Eggscellent Knight / Ace Balthazar / Witness #2 (voice)