Alfred L. Werker
Louis De Rochemont
J. Edgar Hoover
Leo Rosten
Joseph C. Brun
Louis Applebaum
George Murphy
Inspector James 'Jim' Belden
Finlay Currie
Professor Albert Kafer
Virginia Gilmore
Millie / Teresa Zalenko
Karl Stepanek
Alexi Laschenkov / Gregory Anders
Louisa Horton
Mrs. Elaine Wilben
Peter Capell
Chris Zalenko / Gino
Bruno Wick
Luther Danzig
Vilma Kurer
Mrs. Rita Foss
Ann Thomas
Philadelphia Suspect
George Roy Hill
Nicholas Wilben
Karl Weber
FBI Agent Charlie Reynolds
Michael Garrett
Michael Dorndoff aka Frank Torrance
... and 12 more
CinemaSerf
Were it not for the oppressive and seriously condescending narrative this might have been quite a decent little fifth-columnist drama. Karel Stepanek is "Laschenko", the communist mastermind behind a plot to force renowned scientist "Prof. Kafer" (a very unlikely Finlay Currie) to reveal some top se...
RD-DR Productions
Columbia Pictures