- Vince Edwards
- Pvt. George Baker
- Albert Finney
- Russian Soldier
- George Hamilton
- Cpl. Theodore Trower
- Melina Mercouri
- Magda
- Jeanne Moreau
- French Woman
- George Peppard
- Cpl. Frank Chase
- Maurice Ronet
- French Lieutenant
- Rosanna Schiaffino
- Maria
- Romy Schneider
- Regine
- Elke Sommer
- Helga Metzger
- Eli Wallach
- Sgt. Joe Craig
- Michael Callan
- Eldridge
- Peter Fonda
- Weaver
- James Mitchum
- Pvt. Robert Grogan
- Senta Berger
- Trudi Metzger
- Albert Lieven
- Herr Metzger
- Mervyn Johns
- Dennis
- Tutte Lemkow
- Sikh Soldier
- John Crawford
- U.S. Army Captain at rest area
- Peter Vaughan
- Policeman
- George Mikell
- Russian Sentry
- Alf Kjellin
- Priest
- Larry Cross
- (as Russ Titus)
- Alan Barnes
- Tom
- John Rogers
- Young British soldier
- Marianne Deeming
- Frau Metzger
- Sean Kelly
- Giggling Sergeant
- Patrick Jordan
- Tank Sergeant
- James Chase
- Condemned Soldier
- Malya Nappi
- Barmaid
- Milo Sperber
- Concentration Camp Prisoner
- George Roubicek
- Russian Sentry
- Riggs O'Hara
- 'The Squad' Member
- Charles De Temple
- 'The Squad' Member
- Al Waxman
- 'The Squad' Member
- Tom Busby
- 'The Squad' Member
- Robert Nichols
- 'The Squad' Member
- Graydon Gould
- 'The Squad' Member
- Larry Caringi
- 'The Squad' Member
- Ian Hughes
- 'The Squad' Member
- Anthony McBride
- 'The Squad' Member
- John Agar
- Self
- Pauline Chamberlain
- Woman at Dance
- Vic Chapman
- American Officer
- Winston Churchill
- Self
- George Curtis
- Man in Nightclub
- Bee Duffell
- Joan
- Dwight D. Eisenhower
- Self
- Elizabeth Ercy
- Young French Girl
- Joël Flateau
- Jean-Pierre
- Vanda Godsell
- Nurse
- Arthur Goodman
- Regine's Father in Photo
- Adolf Hitler
- Self
- Ken MacGregor
- American Soldier
- Fred Machon
- Man in Nightclub
- Colin Maitland
- (uncredited)
- Bernard L. Montgomery
- Self
- Norman Morris
- British Soldier
- James Payne
- German Soldier at Pill Box
- Steve Plytas
- Waiter
- Franklin D. Roosevelt
- Self
- Jack Ross
- American Soldier
- Terry Sach
- Soldier
- Len Saunders
- Concentration Camp Prisoner
- Frank Schock
- Restaurant Patron
- Frank Sinatra
- Self - Vocalist
- Joseph Stalin
- Self
- Marianne Stone
- Prostitute at Hotel de Flandre
- Shirley Temple
- Self
- Bess Truman
- Self
- Harry S. Truman
- Self
- Margaret Truman
- Self
- Tony Wallace
- (uncredited)
