Florinda Bolkan
Carol Hammond
Stanley Baker
Inspector Corvin
Jean Sorel
Frank Hammond
Silvia Monti
Deborah
Alberto de Mendoza
Sergeant Brandon
Penny Brown
Jenny
Mike Kennedy
Hubert
Ely Galleani
Joan Hammond
George Rigaud
Dr. Kerr
Ezio Marano
Lowell - Scientific Squad
Franco Balducci
McKenna
Luigi Antonio Guerra
Policeman
Erzsi Paál
Mrs. Gordon
Gaetano Imbró
Policeman
Leo Genn
Edmond Brighton
Anita Strindberg
Julia Durer (uncredited)
Tony Adams
Policeman (uncredited)
Jean Degrave
St. Paul's Clinic Director (uncredited)
Basil Dignam
Commissioner McCloud (uncredited)
Ursel Eberz
Policewoman Beth (uncredited)
Piero Nistri
Mrs. Gordon's Chauffeur (uncredited)
Fred Wood
Train passenger
John Clifford
Train Passenger (uncredited)
Lew Hooper
Policeman (uncredited)
George Spence
Train Passenger (uncredited)
Rita Tobin-Weske
Train Passenger (uncredited)
Fred Wood
Train Passenger (uncredited)