On screen
Cast
38 credited performers
James Farentino
Jefferson Keyes
John Vernon
Inspector Duprez
Barbara Bouchet
Carla Miles
Patrick O'Neal
Doctor Emile Snow
Adele Mara
Elena
Ed Bernard
Character not listed
Christine Belford
Character not listed
Felton Perry
Character not listed
Ray Milland
Neil Fitzsimmons
Jackie Coogan
Merrill Cossack
Mickey Hargitay
Frederick
Anthony Dawson
Prefect
Lila Kedrova
Mme. Martine
Guido Alberti
Tomlin
John Karlsen
Werner
Kim Darby
Annette Borne
George R. Robertson
John Ogden
Artwork unavailable
Robert Goodier
J.L. Bordeen
Artwork unavailable
Jane Mallett
Patrice Marteen
Artwork unavailable
Felixe Fitzgerald
Claudine Duval
Joanna Barnes
Elizabeth Karinakis
Mills Watson
Diego
John Abbott
Sir Godwin Phipps-Cheston
Nehemiah Persoff
Karinakis
Wilfrid Hyde-White
Englishman
Pamela Franklin
Holly Hamilton
Ilka Chase
Victoria Chambers
Lilyan Chauvin
Party guest
Barry Sullivan
Baynard Barnes
Sharon Gless
Sandy Sherwood
Danielle De Metz
Michelle DuBois
Artwork unavailable
Carlos Romero
Character not listed
Nico Minardos
Mano Kavalaris
Cliff Emmich
Paul Davison
John S. Ragin
Fred Harrison
Joseph Ruskin
President Chaambes
Ina Balin
Nagway
Elaine Giftos
Kahadija Messadi