John Bentley
Paul Temple
Dinah Sheridan
Steve Temple
Jack Livesey
Sir Graham Forbes
Beatrice Varley
Mrs. Weston
Barbara Couper
Mrs. Morgan
Jenny Mathot
Jacqueline Giraud
Andrew Leigh
Professor Hardwick
Hugh Dempster
Oliver Ffollett
Dino Galvani
Van Draper
Ivan Samson
Major Murray
Bruce Seton
Bill Bryant
Leo de Pokorny
Dr. Steiner
Michael Brennan
Hammond
Joseph O'Conor
Inspector Crane
