Host
Rex Marshall
Jenny / Mrs. Griffin / Mrs. Barret
Ruth McDevitt
Kip Caley / Lt. Jim Connor / Johnny
Brian Keith
Betty Marshall / Myra Wilson / Babe
Cara Williams
Albert / Cruze / Andy Barnes
Anthony Ross
Policeman / Marvin the Push / Lucky
Royal Dano
Bill Reed / Roger Sherman / D.P. Bradford
George Reeves
Murderer / Dan Crowley / Williams
Jackie Cooper
Mollie / Margaret Quartermain / Mrs. Haskell
Eileen Heckart
Bronson / Rasputin / Toff
Boris Karloff
Tommy / Richard / Sprad
Conrad Janis
Higgins / Mr. O'Farrell / Padre
Morton Stevens
Eddie Hunt / Gavin Stevens / Abner Snopes
E.G. Marshall
Mrs. Haley / Kelly Davis
Neva Patterson
Police Inspector Jules Maigret / Monsieur Vidocq
Luis Van Rooten
Sherlock Holmes / Dr. Jekyll / Mr. Hyde
Basil Rathbone
Nadia Demarest / Suspicious Woman
Mildred Natwick
Tom Walker / Count Alessandro di Cagliostro
Jack Palance
Policeman / Mr. Wohler
Mike Kellin
Mother / Lady Sannox
Stella Adler
Ned Bassett / Dr. Joseph Parker
Mark Roberts