Casts
George Murphy
as Inspector James 'Jim' Belden
Finlay Currie
as Professor Albert Kafer
Virginia Gilmore
as Millie / Teresa Zalenko
Karl Stepanek
as Alexi Laschenkov / Gregory Anders
Louisa Horton
as Mrs. Elaine Wilben
Peter Capell
as Chris Zalenko / Gino
George Roy Hill
as Nicholas Wilben
Wolfgang Zilzer
as August Helmuth
Rosemary Pettit
as Mrs. Martin
Steve Mitchell
as Samson
