Discover
Original Release
1958
Cast
| Name | Character |
|---|
| Boris Karloff | Sgt. Chester Willmore / Dr. Carlo Marcabienti / Andre Giraud / Dr. Francis Mason |
| Booth Colman | Edmond Vallier |
| Roxane Berard | Marie Montcourt |
| Leo Penn | Charles Montcourt |
| Albert Carrier | Philippe Jussard |
| Tony Travis | Dr. Angelo Marcabienti |
| Argentina Brunetti | Maria (the housekeeper) |
| Elvira Curci | Mama Bianchi |
| Ernest Sarracino | Papa Bianchi |
| Bruno Della Santina | Giuseppe (the gardener) |
Directors
Herbert L. Strock, George Waggner
Writers
David Evans, Robert L. Joseph, Fred Schiller, Hendrik Vollaerts
Cast
| Name | Character |
|---|
| Boris Karloff | Sgt. Chester Willmore / Dr. Carlo Marcabienti / Andre Giraud / Dr. Francis Mason |
| Booth Colman | Edmond Vallier |
| Roxane Berard | Marie Montcourt |
| Leo Penn | Charles Montcourt |
| Albert Carrier | Philippe Jussard |
| Tony Travis | Dr. Angelo Marcabienti |
| Argentina Brunetti | Maria (the housekeeper) |
| Elvira Curci | Mama Bianchi |
| Ernest Sarracino | Papa Bianchi |
| Bruno Della Santina | Giuseppe (the gardener) |
| Inez Palange | Grandmother |
| Dominica Hauser | Neighbor |
| Domenick Delgarde | Tony Bianchi |
| Lauren Perreau | Francesca Bianchi |
| Harry Bartell | Edward Paige |
| Paul Bryar | Det. Lt. Davis |
| Ray Montgomery | Police Sgt. Fenton |
| Gretchen Thomas | Elizabeth Foley |
| Vici Raaf | Blonde Woman |
| Robert Griffin | Dr. Dragstedt |
Producers
| Name | Role |
|---|
| Hal Roach Jr. | Executive Producer |
| Frank P. Bibas | Producer |
| Sidney Morse | Producer |
