Cast
George Murphy
Inspector James 'Jim' Belden
Mary Young
Old Lady (uncredited)
Finlay Currie
Professor Albert Kafer
Karl Stepanek
Alexi Laschenkov / Gregory Anders
George Roy Hill
Nicholas Wilben
Wolfgang Zilzer
August Helmuth
Virginia Gilmore
Millie / Teresa Zalenko
Peter Capell
Chris Zalenko / Gino
Rosemary Pettit
Mrs. Martin
Steve Mitchell
Samson
Nancy Hale
Mrs. Belden (uncredited)
Louisa Horton
Mrs. Elaine Wilben