Yin Yang Yo!/Regular Show

Cast:

Yang (or Yin) as Mordecai

Yin (or Yang) as Rigby (I know Yin is a Female, & Rigby's a Male.)

Coop as Pops

Master Yo as Benson

Roger as Skips

Yuck as Muscle Man

Eve (From the ep, Gone a Fowl) as High Five Ghost