Mary Johnstone
Phyllis Calvert
Bill Haverton
James Donald
Kid Cormack
Andrew Crawford
Harry Gunn
Charles Victor
Romer
Gerard Heinz
Mrs. Barber
Mary Hinton
Opera House Director
Jan Van Loewen
1st Guide
Arthur Goullet
2nd Guide
Leo Bieber
Reporter (uncredited)
Bonar Colleano
Ambulance Man (uncredited)
Philo Hauser
Pelotti (uncredited)
Ferdy Mayne
Joanna Dane
Margot Grahame
Man Pushing Past Mary (uncredited)
Jim Brady
Swiss Officer (uncredited)
Karl Stepanek
Anton Perami
Francis L. Sullivan
Captain Fox
Guy Rolfe
Jimmy Marshall
David Tomlinson
Edward Marshall
Raymond Huntley
Richard Faber
Derek Bond
John Barber
Grey Blake
Anne Stephens
Sonia Holm
Cinematography
Alain Pol
Georges Tairraz II
Director
Ken Annakin
J. Arthur Rank
Raymond Segard
Music
John Greenwood
Editor
Esmond Seal
Director of Photography
Jack E. Cox
Makeup Artist
W.T. Partleton
Assistant Director
Ernest Morris
Sound
Les Hammond
Associate Producer
Roy Rich
Art Direction
Richard Yarrow
B. C. Sewell
Bill Salter
Producer
Sydney Box
Michael C. Chorlton
Screenplay
Robert Westerby