Performed by Milligan, Peter Sellers and Harry Secombe, the Goon Show was an extremely popular comedy show on the BBC Home Service. The scripts mixed ludicrous plots with surreality, puns, catchphrases and an array of silly sound effects.
- Harry Secombe as Neddie Seagoon, the affable but gullible hero
- Spike Milligan as
- The Famous Eccles, a complete dimwit
- Miss Minnie Bannister, an elderly spinster
- Count Jim "Knees" Moriarty, Grytpype-Thynne's sidekick
- Peter Sellers as
- Major Dennis Bloodnok, an ex-military man
- Hercules Grytpype-Thynne, a suave cad who generally tries to swindle or trick Seagoon
- Henry Crun
- Bluebottle, a youngster who reads his own stage directions and is often "deaded"
- Willium "Mate" Cobblers
- Wallace Greenslade - announcer, he opened and closed each show
- Ray Ellington - singer and drummer
- Max Geldray - jazz harmonica player
- Wally Stott Orchestra - the house band
Michael Bentine was part of the regular cast for the first two seasons.