- Michael Bates - Froome
- Rodney Diak - Pannet
- Michael Shillo - Jouvet
- Eddie Byrne - Commander (Tough's Yard)
- Maxine Audley - Diana
- Lionel Jeffries - Colonel (Medical Officer)
- Victor Maddern - Merchant Seaman
- Anthony Nicholls - Military Spokesman
- Bud Flanagan - Himself
- Chesney Allen - Himself
- Kenneth Cope - Lieutenant Lumpkin
- Denys Graham - Fraser
- Barry Foster - Don R
- Warwick Ashton - Battery Sergeant Major
- Peter Halliday - Battery Major
- John Welsh - Staff Colonel
- Lloyd Lamble - Staff Colonel
- Cyril Raymond - General The Viscount Gort V.C.
- Nicholas Hannen - Vice Admiral Ramsay
- Patricia Plunkett - Grace
- Michael Gwynn - Commander (Sheerness)
- Fred Griffiths - Old Sweat
- Dan Cressey - Joe
- Christopher Rhodes - Sergeant on the beaches
- Harry Landis - Dr. Levy
- John Horsley - Padre
- Patrick Allen - Sergeant on Parade Ground
- Liz Fraser - Worker in Holden's Factory (uncredited)
- Michael Brennan - Paddle Steamer Captain (uncredited)
- Bernard Cribbins - Thirsty Sailor (uncredited)
- John G. Heller - German Soldier (uncredited)
- John Phillips - Boat Owner Spokesman (uncredited)
- William Squire - Captain (uncredited)
- Tim Turner - Officer (line of men in sea) (uncredited)
-
Leslie Norman
-
David Divine, W.P. Lipscomb
- Michael Balcon
- Michael Forlong
- Malcolm Arnold
- Dock Mathieson
Capítulo disponible en las siguientes plataformas:
