|Paul Angelis||Chief Blue Meanie, Ringo|
|Dick Emery||Jeremy Hilary Boob, Ph.D (Nowhere Man); Lord Mayor; Max|
|George Harrison||George (Singing Voice)|
|John Lennon||John (singing voice)|
|Paul McCartney||Paul (Singing Voice)|
|Lance Percival||Young/Old Fred|
|Ringo Starr||Ringo (Singing Voice)|
The music-loving inhabitants of Pepperland are under siege by the Blue Meanies, a nasty group of music-hating creatures. The Lord Mayor of Pepperland dispatches sailor Old Fred to Liverpool, England, where he is to recruit the help of the Beatles . The sympathetic Beatles ride a yellow submarine to the occupied Pepperland, where the Blue Meanies have no chance against the Fab Four's groovy tunes.