|  | When Dr. Savaard's experiment in cryonics is interrupted by the short-sighted authorities, his volunteer dies, and he is condemned to death. He vows vengeance if he can survive his own hanging. | 
| Boris Karloff | - | Dr. Henryk Savaard | 
| Lorna Gray | - | Janet Savaard | 
| Robert Wilcox | - | 'Scoop' Foley | 
| Roger Pryor | - | District Attorney Drake | 
| Don Beddoe | - | Police Lt. Shane | 
| Ann Doran | - | Betty Crawford | 
| Joe De Stefani | - | Dr. Stoddard | 
| Charles Trowbridge | - | Judge Bowman |