 |
Derek Farr as Ivan Mason / Dr. James Paxton |
 |
Ella Raines as Rhona Ellison |
 |
Donald Wolfit as Prof. Cattrell |
 |
Lisa Daniely as Nurse Mitzi |
 |
Bruce Beeby as Dr. Manning |
 |
Russell Napier as Scotland Yard Supt. Davidson |
 |
Cyril Cusack as Dr. Kelly |
 |
Frederick Piper as Medwood Inspector Hayman |
 |
Karl Stepanek as Dmitri Balinkev |
|
Alfred Maron as Ambulance Driver |
 |
John Welsh as George White - the Gamekeeper |
|
Olive Sloane as Mrs. Lemmin - the Landlady |
| Directing | Lance Comfort | Director |
| Writing | Anthony Armstrong | Novel |
| Writing | Guy Morgan | Writer |
| Art | Eric Saw | Art Direction |
