- Alec Guinness
- Captain Crawford
- Dirk Bogarde
- Lieut. Scott-Padget
- Maurice Denham
- Mr. Goss (Ship's Surgeon)
- Nigel Stock
- Senior Midshipman Kilpatrick
- Richard Carpenter
- Lieut. Ponsonby
- Peter Gill
- Lieut. D'Arblay
- David Robinson
- Harvey Crawford
- Robin Stewart
- Pardoe
- Ray Brooks
- Hayes
- Peter Greenspan
- Johnson
- Anthony Quayle
- Vizard
- Tom Bell
- Evans
- Murray Melvin
- Wagstaffe
- Victor Maddern
- Dawlish
- Bryan Pringle
- Sgt. Kneebone
- Johnny Briggs
- Wheatley
- Brian Phelan
- Grimshaw
- Toke Townley
- Silly Billy
- Declan Mulholland
- Morrison
- Walter Fitzgerald
- Admiral Jackson
- Joy Shelton
- Mrs. Crawford
- Anthony Oliver
- Tavern Leader
- Russell Napier
- Flag Captain
- Michael Coles
- Flag Lieutenant
- André Maranne
- Colonel Giraud
- Del Baker
- Marine officer
- Joe Beckett
- Crewman
- James Bolam
- Midshipman Assisting in Operation
- Tom Bowman
- Bosun
- Jim Brady
- Member of Press Gang
- Vic Chapman
- Crewman
- Maxwell Craig
- Defiant Crewman With Lamp
- Dick Gregory
- Purser
- Patrick Halpin
- Crewman
- Walter Henry
- Press Ganged Crewman
- Ann Lynn
- Young wife whose husband is pressed
- Alf Mangan
- Sailor
- Endre Muller
- French Captain
- Roger Mutton
- Seaman
- Emilio Scala
- Pirate
- Arnold Schulkes
- Crewman
- James Sharkey
- Venetian Captain
- Vera Tilsley
- Girl in inn
- Harry Webster
- Flagship Sailor
- Fred Wood
- French Sailor
