- Kenneth Williams
- Captain Fearless
- Bernard Cribbins
- Albert Poop-Decker
- Juliet Mills
- Sally
- Charles Hawtrey
- Walter Sweetly
- Donald Houston
- Jonathan Howett
- Percy Herbert
- Mr. Angel
- Jim Dale
- Young Carrier
- Patrick Cargill
- Don Luis
- Cecil Parker
- First Sealord
- Ed Devereaux
- Hook
- Peter Gilmore
- Roger
- George Woodbridge
- Ned
- Ian Wilson
- Ancient Carrier
- Jimmy Thompson
- Adm. Horatio Nelson
- Anton Rodgers
- Hardy
- Michael Nightingale
- Town Crier
- Frank Forsyth
- Second Sealord
- Barrie Gosney
- Coach Driver
- John Brooking
- Third Sealord
- Jan Muzurus
- Spanish Captain
- Viviane Ventura
- Spanish Secretary
- Marianne Stone
- Peg
- Chris Adcock
- Pirate
- Tony Allen
- Pirate
- Bernard Barnsley
- Deck Hand
- Alan Beaton
- Pirate
- Joe Beckett
- Pirate / Naval Officer (uncredited)
- Jim Brady
- Pirate
- Ted Bushell
- Surgeon's Assistant
- Jack Carter
- Marine
- Marian Collins
- Girl at Dirty Dick's
- Kenneth Cope
- Sailor
- Maxwell Craig
- Deckhand
- Dominique Don
- Girl at Dirty Dick's
- Sally Douglas
- Girl at Dirty Dick's
- Vince Fleming
- Deck Hand
- Pat Gorman
- Pirate
- Josie Grant
- Woman Leaving Ship
- Jean Hamilton
- Girl at Dirty Dick's
- Frank Harper
- Man at Dirty Dick's
- Walter Henry
- Deckhand
- Bill Hibbert
- Rating
- Jennifer Hill
- Girl at Dirty Dick's
- George Hilsdon
- Deckhand
- Pat Judge
- Pirate
- Ricky Lansing
- Deck Hand
- Max Latimer
- Deck Hand
- Aileen Lewis
- Onlooker
- Martin Lyder
- Spanish Guard
- Fred Machon
- Man at Dirty Dick's
- Rosemary Manley
- Girl at Dirty Dick's
- Lou Morgan
- Pirate
- George Mossman
- Coachman
- Neil Osborne
- Naval Officer / Deck Hand (uncredited)
- Charles Price
- Pirate
- Reg Prince
- Man at Dirty Dick's
- Ernie Rice
- Man at Dirty Dick's
- Bill Rooney
- Deck Hand
- Roy Seely
- Pirate
- Guy Standeven
- Pirate
- Dorinda Stevens
- Girl at Dirty Dick's
- Bill Strange
- Deck Hand
- Reg Thomason
- Naval Officer
- Del Watson
- Press Gang
