Laurence Harvey
— John Durrance
Anthony Steel
— Harry Faversham
James Robertson Justice
— General Burroughs
Mary Ure
— Mary Burroughs
Ronald Lewis
— Peter Burroughs
Michael Hordern
— General Faversham
Ferdy Mayne
— Dr. Harraz
Christopher Lee
— Karaga Pasha
Ian Carmichael
— Tom Willoughby
Jack Lambert
— Colonel
Raymond Francis
— Colonel's Aide
Geoffrey Keen
— Dr. Sutton
John Wynn
— Sergeant
Avis Scott
— Sergeant's Wife
Roger Delgado
— Native Spy
Frank Singuineau
— Native Servant
Ben Williams
— Faversham's Butler
Vincent Holman
— Burroughs' Butler
Paul Streather
— Harry Faversham (as a boy)
N. Al Basri
— Dervish
M.H. Gadalla
— Dervish
Michael Argy
— Dervish
Edwin Cary
— Dervish
Brian Cooper
— British Soldier (uncredited)
Sam Kydd
— Joe (uncredited)
Mabel Etherington
— Wedding Guest