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.
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)
Jason Mantzoukas
Mr. Ross (voice)
David Koechner
Principal Dean (voice)
Roger Craig Smith
Jablonski / Frank Smith / Fast Food Guy (voice)
Ali Hillis
Ship Computer / Rigby's Mom (voice)
Kurtwood Smith
Gene (voice)
Eddie Pepitone
Sherm (voice)
Paul F. Tompkins
Gino (voice)
Fred Tatasciore
Father Time / Security Guard / Additional Voices (voice)
Steve Blum
Techmo / Brit / Commander / TV Game (voice)
Janie Haddad Tompkins
Margaret (voice)
Director
Mike Roth
Story
Michele Cavin
John Infantino
Screenplay
Sean Szeles
Owen Dennis
Paula Spence
Supervising Art Director
Ryan Slater
Producer
Supervising Producer
Albert Fox
Original Music Composer
John Enroth
Mark Mothersbaugh
Executive Producer
Brian A. Miller
Jennifer Pelphrey
Curtis Lelash
Rob Sorcher
Conrad Montgomery
Executive In Charge Of Production
Danielle Adrias
Production Manager
Matt Rice
Story Editor
Ben Adams
Character Designer
Kris Zimmerman
Casting Director
Robert Alvarez
Animation Director
Brian Sheesley
Hwang Gi-ho
Baek Jong-Cheol
Yu-sung Kim
Matt Price
