On screen
Cast
14 credited performers
James Garner
William Beddoes
Melina Mercouri
Aurora / Celeste da Costa
Sandra Dee
Amy Franklin
Anthony Franciosa
Steve / Antonio
Robert Coote
Hatton / Jones
Roland Culver
Doctor Mathieson
Grégoire Aslan
Florian
Cecil Parker
Sir Huntley Frazier
Dulcie Gray
Mrs. Mathieson
Martin Benson
Politanu
Peter Illing
Zarik
Niall MacGinnis
Ship's Captain
Virgílio Teixeira
Inspector Rodrigues
Jenny Agutter
Linda Frazier (uncredited