Inspector James 'Jim' Belden
George Murphy
Inspector James 'Jim' Belden

“MOST THRILLING PICTURE SINCE "HOUSE ON 92ND STREET"!”
An FBI agent works with a refugee scientist and the Coast Guard to crack a Soviet spy ring in Boston.
Inspector James 'Jim' Belden
George Murphy
Inspector James 'Jim' Belden
Professor Albert Kafer
Finlay Currie
Professor Albert Kafer
Millie / Teresa Zalenko
Virginia Gilmore
Millie / Teresa Zalenko
Alexi Laschenkov / Gregory Anders
Karl Stepanek
Alexi Laschenkov / Gregory Anders
Mrs. Elaine Wilben
Louisa Horton
Mrs. Elaine Wilben
Chris Zalenko / Gino
Peter Capell
Chris Zalenko / Gino
Luther Danzig
Bruno Wick
Luther Danzig
Mrs. Rita Foss
Vilma Kurer
Mrs. Rita Foss
Philadelphia Suspect
Ann Thomas
Philadelphia Suspect
Nicholas Wilben
George Roy Hill
Nicholas Wilben
FBI Agent Charlie Reynolds
Karl Weber
FBI Agent Charlie Reynolds
Michael Dorndoff aka Frank Torrance
Michael Garrett
Michael Dorndoff aka Frank Torrance
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