- Lee Marvin
- Major John Reisman
- Ernest Borgnine
- General Worden
- Charles Bronson
- Joseph T. Wladislaw
- Jim Brown
- Robert T. Jefferson
- John Cassavetes
- Victor R. Franko
- Richard Jaeckel
- Sergeant Bowren
- George Kennedy
- Major Max Armbruster
- Trini López
- Pedro Jiminez
- Ralph Meeker
- Captain Stuart Kinder
- Robert Ryan
- Col. Everett Dasher Breed
- Telly Savalas
- Archer J. Maggott
- Donald Sutherland
- Vernon L. Pinkley
- Clint Walker
- Samson Posey
- Robert Webber
- General Denton
- Tom Busby
- Milo Vladek
- Ben Carruthers
- Glenn S. Gilpin
- Stuart Cooper
- Roscoe Lever
- Robert Phillips
- Corporal Morgan
- Colin Maitland
- Seth K. Sawyer
- Al Mancini
- Tassos R. Bravos
- George Roubicek
- Pvt. Arthur James Gardner
- Thick Wilson
- General Worden's Aide
- Dora Reisser
- German Officer's Girl
- Lewis Alexander
- German Officer
- Michael Anthony
- German Officer in Staff Car
- William Baskiville
- Military Policeman
- Roy Beck
- German Officer
- Cynthia Bizeray
- German Officer's Wife
- Leo Britt
- German General in Staff Car
- Harry Brooks Jr.
- German Officer
- Ken Buckle
- German Sentry
- Jack Carter
- Military Policman
- Alan Chuntz
- French Servant
- Victor Coventry
- German Officer
- Harold Coyne
- Soldier
- Gerry Crampton
- Staff Sergeant Alistair Clayton
- Hugh Elton
- German Officer
- Gary Files
- Ambulance Driver
- Suzanne Fleuret
- French Servant
- Judith Furse
- Drunken General's Wife
- Hal Galili
- MP Master Sergeant / Hangman (uncredited)
- Victor Gallucci
- German Officer
- Alan Gibbs
- American Orderly
- Romo Gorrara
- Airborne Soldier
- Willoughby Gray
- German Officer
- Patrick Halpin
- German General
- Alan Harris
- Soldier
- Gerard Heinz
- Card-Playing German Officer
- John G. Heller
- 2nd German Sentry at Chateau
- George Hilsdon
- Medical Officer at Hanging
- John Hollis
- German Porter at Chateau
- Alf Joint
- German Sentry Wanting Light
- Angela Kay
- German Officer's Wife
- Juba Kennerley
- German Officer
- Eric Kent
- Airborne Soldier
- John Ketteringham
- (uncredited)
- Hildegard Knef
- (uncredited)
- Ann Lancaster
- Prostitute
- Roy Lansford
- Officer
- Aileen Lewis
- German Officer's Wife
- Dickey Luck
- German General
- Richard Marner
- German Sentry at Chateau
- Mark McBride
- French Servant
- Dick Miller
- MP at Hanging
- John More
- German Officer
- Lou Morgan
- MP Putting Hood on Gardner
- Norman Morris
- American Officer
- Lionel Murton
- MP Lt. Col. in Charge at Hanging
- Suzanne Owens-Duval
- Prostitute
- Joe Phelps
- German Officer
- Edith Raye
- German Officer's Wife
- Mike Reid
- Sergeant at War Games HQ
- Terry Richards
- Staff Sergeant McIntosh Blake
- Jack Ross
- French Servant
- Gordon Ruttan
- MP Corporal / Desk Clerk (uncredited)
- Frederick Schiller
- Drunken German General
- Bunny Seaman
- German Officer's Wife
- Michael Segal
- Airborne Band Conductor
- Jack Sharp
- German Officer
- Richard Shaw
- German Officer Who Seals the Bunker
- Tony Snell
- MP
- Warren Stanhope
- German Officer
- Michael Stayner
- German Radio Operator
- Emile Stemmler
- German Officer
- Michael Stevens
- Officer at Command Post
- Bill Strange
- Military Policeman
- Fred Stroud
- Officer at Hanging
- Elliott Sullivan
- Army officer at briefing
- John Tatham
- German Officer
- Rocky Taylor
- Airborne Soldier
- Burnell Tucker
- Army Doctor
- Hedger Wallace
- German Officer
- Ken Wayne
- Master Sergeant Gill Fredericks
- Theodore Wilhelm
- German Officer
- Jeremy Wilkin
- Sergeant at Command Post
- Fred Wood
- German Soldier
- Vicki Woolf
- Prostitute
