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.

Where to watch it in Canada

By subscription (streaming)

TELETOON+ Amazon Channel

Cast

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)

J.G. Quintel — Mordecai / Hi-Five Ghost (voice)

James Garland Quintel (born September 18, 1982) is an American voice actor, animator, television writer, producer and director best known for creating Cartoon Network’s Regular Show (2009-2017) and HBO Max’s Close Enough (2020-2022). He also wrote and directed Regular Show: The Movie (2015)

William Salyers — Rigby (voice)

William Salyers is an American actor. He is perhaps best known for his vocal performances, such as Reverend Putty on Moral Orel, Rigby on Regular Show and Otto Octavius / Doctor Octopus in the 2018 video game Spider-Man.

Sam Marin — Benson / Pops / Muscle Man (voice)

Samuel Marin is an American voice actor and animator. He is mostly known for his work on the animated series Regular Show as the voices of the characters Benson, Pops, and Muscle Man, and many other additional roles.