George Murphy ( George Murphy )

Inspector James 'Jim' Belden

Finlay Currie ( Finlay Currie )

Professor Albert Kafer

Virginia Gilmore ( Virginia Gilmore )

Millie / Teresa Zalenko

Karl Stepanek ( Karl Stepanek )

Alexi Laschenkov / Gregory Anders

Louisa Horton ( Louisa Horton )

Mrs. Elaine Wilben

Peter Capell ( Peter Capell )

Chris Zalenko / Gino

Bruno Wick ( Bruno Wick )

Luther Danzig

Vilma Kurer ( Vilma Kurer )

Mrs. Rita Foss

Ann Thomas ( Ann Thomas )

Philadelphia Suspect

George Roy Hill ( George Roy Hill )

Nicholas Wilben

Karl Weber ( Karl Weber )

FBI Agent Charlie Reynolds

Michael Garrett ( Michael Garrett )

Michael Dorndoff aka Frank Torrance

Lotte Palfi Andor ( Lotte Palfi Andor )

Anna Kafer

Ernest Graves ( Ernest Graves )

Robert Martin

Robert Carroll ( Robert Carroll )

Boldany

Wolfgang Zilzer ( Wolfgang Zilzer )

August Helmuth

Bradford Hatton ( Bradford Hatton )

Harry Mason

Rosemary Pettit ( Rosemary Pettit )

Mrs. Martin

Eva Condon ( Eva Condon )

Landlady

Steve Mitchell ( Steve Mitchell )

Samson

John Farrell ( John Farrell )

Nancy Hale ( Nancy Hale )

Westbrook Van Voorhis ( Westbrook Van Voorhis )

Mary Young ( Mary Young )