John Verney

Richard Widmark

Father Michael

Christopher Lee

Catherine

Nastassja Kinski

Anna

Honor Blackman

Henry Beddows

Denholm Elliott

George de Grass

Michael Goodliffe

Eveline de Grass

Eva Maria Meineke

David

Anthony Valentine

Bishop

Derek Francis

Margaret

Isabella Telezynska

Kollde (as Constantine De Goguel)

Constantine Gregory

Isabel

Anna Bentinck

German Matron

Irene Prador

Sister Helle

Petra Peters

Black Room Attendant

Brian Wilde

Airport Porter

William Ridoutt

Critic (Roger)

Howard Goorney

Salvation Army Major

Frances de la Tour

Girl

Zoe Hendry

2nd Girl

Lindy Benson

3rd Girl

Jo Peters

4th Girl

Bobby Sparrow

Reporter

Ed Devereaux

Curator

Bill Horsley