- Ray Milland
- Colley Dawson
- Barry Jones
- Bennett Carfield
- Jeanette Sterke
- Irene
- Victor Maddern
- Morris
- Ernest Clark
- Major Adbury
- Cyril Raymond
- Inspector Frankham
- Melissa Stribling
- Angela
- Percy Herbert
- Sergeant Harper
- Barbara Everest
- Mrs. Dawson
- Anthony Nicholls
- General Prior
- David Horne
- Herbert Fenwright
- Colin Gordon
- Dakers
- Clive Morton
- Sir George Turvey
- John Welsh
- Inspector Owing
- Pamela Stirling
- Belgian Messenger
- Colin Tapley
- Colonel Charles Mercer
- Henri Vidon
- Lonsen
- Ian MacNaughton
- Thomson
- Bernard Fox
- Shafter
- Richard Shaw
- Bailey
- Charles Lloyd Pack
- Lambert
- Barry Keegan
- Squadron Leader Hawkes
- Jackie Collins
- Fenwright's Secretary
- Ferdy Mayne
- Greek Ship Owner
- Arnold Bell
- Detective
- Gerald Case
- Car Salesman
- John Robinson
- Assistant Chief of Staff
- Basil Dignam
- Air Vice Marshal
- Sam Kydd
- McCullers
- Hilda Fenemore
- Mrs. McCullers
- Bernard Foreman
- Foreman
- Eddie Eddon
- Eddon
- David Lodge
- Parachute Instructor
- Richard Marner
- German N.C.O
- Wolf Frees
- German Commandant
- Carl Conway
- German Sergeant
- Ernst Walder
- German Security Policeman
- Hyma Beckley
- Dog Track Crowd
- Alf Casha
- Man in Crowd
- Eddie Dillon
- Man in Crowd
- Otto Friese
- German Soldier
- George Hilsdon
- Tic Tac Man
- Walter Horsbrugh
- Carfield's Assistant
- William Mervyn
- Admiralty Commander
- Joe Phelps
- Soldier / Policeman (uncredited)
- Paddy Smith
- Detective
- John Wilder
- Officer
