Gregory Peck
Capt. Keith Mallory
David Niven
Cpl. James Arthur Miller
Anthony Quinn
Col. Andrea Stavros
Stanley Baker
Pvt. 'Butcher' Brown
Anthony Quayle
Maj. Roy Franklin
James Darren
Pvt. Spyros Pappadimos
Irene Papas
Maria Pappadimos
James Robertson Justice
Commodore Jensen / Prologue Narrator
Richard Harris
Squadron Leader Howard Barnsby RAAF
Allan Cuthbertson
Maj. Baker
George Mikell
SS Hauptman Sessler
Norman Wooland
Group Captain
Nicholas Papakonstantinou
Patrol Boat Captain
Christopher Rhodes
German Gunnery Officer
William Hoehne Jr.
German Officer on Navarone
Andrew Andreas
Wedding Guest (uncredited)
Victor Beaumont
German Officer in Gun Cave (uncredited)
Jack Cooper
German Soldier on Patrol Boat (uncredited)
Maxwell Craig
German Soldier at Wedding (uncredited)
Carl Duering
German Radar Operator (uncredited)
Peter Evans
German Soldier (uncredited)
Chick Fowles
German Soldier (uncredited)
Wolf Frees
Radio Operator (uncredited)
Alan Gibbs
German Officer (uncredited)
Peter Grant
British Commando (uncredited)
Gerard Heinz
German surgeon (uncredited)
Frank Henson
Radio operator (uncredited)
Arthur Howell
German Officer (uncredited)
Walter Kightly
German Soldier (uncredited)
Rosemary Nicols
Undetermined Secondary Role (uncredited)
Robert Rietti
Mallory - German Voice (voice) (uncredited)
Michael Sarne
Undetermined Secondary Role (uncredited)
Bob Simmons
German Soldier on Navarone (uncredited)
John Tatham
General's Aide (uncredited)
Bob Wright
German Soldier (uncredited)
Terry Yorke
German Soldier (uncredited)
Stephen Zammit
Wedding Guest (uncredited)