Richard Widmark
John Verney
Christopher Lee
Father Michael
Nastassja Kinski
Catherine
Honor Blackman
Anna
Denholm Elliott
Henry Beddows
Michael Goodliffe
George de Grass
Eva Maria Meineke
Eveline de Grass
Anthony Valentine
David
Derek Francis
Bishop
Izabella Telezynska
Margaret
Constantine Gregory
Kollde (as Constantine De Goguel)
Anna Bentinck
Isabel
Irene Prador
German Matron
Brian Wilde
Black Room Attendant
Petra Peters
Sister Helle
William Ridoutt
Airport Porter
Howard Goorney
Critic (Roger)
Frances de la Tour
Salvation Army Major
Zoe Hendry
1st Girl
Lindy Benson
2nd Girl
Jo Peters
3rd Girl
Bobby Sparrow
4th Girl