"An evil hyponotist/ventriloquist plots to gain an heiress' millions."
Bryant Haliday
as The Great Vorelli
William Sylvester
as Mark English
Yvonne Romain
as Marianne Horn
Sandra Dorne
as Magda Gardinas
Karl Stepanek
as Dr. Heller
Francis de Wolff
as Dr. Keisling
Nora Nicholson
as Aunt Eva
Alan Gifford
as Bob Garrett
David Charlesworth
as Hugo Novik
Sadie Corre
as Hugo the Dummy
Lorenza Colville
as Mercedes
Trixie Dallas
as Miss Penton
Guy Deghy
as Hans
Heidi Erich
as Grace
Philip Ray
as Uncle Walter
Ella Tracey
as Louisa, secretary
Margaret Durnell
as Countess
John Tatum
as Charity Ball Guest (uncredited)
Charles F. Vetter
Story
Screenplay
Lindsay Shonteff
Director
Ronald Kinnoch
Richard Gordon
Presenter
Gerald Gibbs
Director of Photography
Ernest Bullingham
Editor
Producer
Kenneth Rive
Brian Elvin
Camera Operator
Mary Gibson
Wardrobe Master
Barbara Thomas
Continuity
Executive Producer
Gerald A. Fernback
Stan Shields
Production Design
