After a high school lab experiment goes horribly wrong, Mordecai and Rigby must go back in time to battle an evil volleyball coach in order to save the universe — and their friendship.

Top Cast

J.G. QuintelMordecai / Hi-Five Ghost (voice)

William SalyersRigby (voice)

Sam MarinBenson / Pops / Muscle Man (voice)

Mark HamillSkips (voice)

Minty LewisEileen (voice)

Jason MantzoukasMr. Ross (voice)

David KoechnerPrincipal Dean (voice)

Roger Craig SmithJablonski / Frank Smith / Fast Food Guy (voice)