Alec Guinness
Jim Wormold
Burl Ives
Dr. Hasselbacher
Maureen O'Hara
Beatrice Severn
Ernie Kovacs
Capt. Segura
Noël Coward
Hawthorne
Ralph Richardson
'C'
Jo Morrow
Milly Wormold
Grégoire Aslan
Cifuentes
Paul Rogers
Hubert Carter
Raymond Huntley
General
Ferdy Mayne
Prof. Sanchez
Maurice Denham
Admiral
Joseph G. Prieto
Lopez
Duncan Macrae
MacDougal
Gerik Schjelderup
Svenson
Hugh Manning
Officer
Karl Stepanek
Dr. Braun
Maxine Audley
Teresa
Elisabeth Welch
Woman
Yvonne Buckingham
Woman
Rachel Roberts
Prostitute (uncredited)