John, Paul, George e Ringo enfrentam em seu Submarino Amarelo o exército de Blue Meanies que chegaram a Pepperland para acabar com toda a música, paz e amor que lá reinava.
Ringo Starr / Chief Blue Meanie / George / Narrator (voice)
John Lennon (voice)
Jeremy Hillary Boob
Paul McCartney (voice) (as Geoff Hughes)
Old Fred (voice)
George (voice) (uncredited)
George (uncredited)
John (uncredited)
Paul (uncredited)
Ringo (uncredited)
Diretor