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

Duncan Macrae

MacDougal

Hugh Manning

Officer

Karl Stepanek

Dr. Braun

Maxine Audley

Teresa

Yvonne Buckingham

Woman

Rachel Roberts

Prostitute (uncredited)