Drama Crime Thriller
An FBI agent works with a refugee scientist and the Coast Guard to crack a Soviet spy ring in Boston.
Directed by
Alfred L. Werker
Finlay Currie
Professor Albert Kafer
George Murphy
Inspector James 'Jim' Belden
Peter Capell
Chris Zalenko / Gino
Karl Stepanek
Alexi Laschenkov / Gregory Anders
Mary Young
Old Lady (uncredited)
Wolfgang Zilzer
August Helmuth
Virginia Gilmore
Millie / Teresa Zalenko
Steve Mitchell
Samson
Nancy Hale
Mrs. Belden (uncredited)
Louisa Horton
Mrs. Elaine Wilben
Rosemary Pettit
Mrs. Martin
Bruno Wick
Luther Danzig
Vilma Kurer
Mrs. Rita Foss
Ann Thomas
Philadelphia Suspect
Karl Weber
FBI Agent Charlie Reynolds
Michael Garrett
Michael Dorndoff aka Frank Torrance
Lotte Palfi Andor
Anna Kafer
Ernest Graves
Robert Martin
Robert Carroll
Boldany
Bradford Hatton
Harry Mason
Eva Condon
Landlady
John Farrell
Taxi Driver (uncredited)
Westbrook Van Voorhis
Narrator (voice) (uncredited)
Suzanne Moulton
Sherry Belden (uncredited)

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