Doctors perform brain surgery to reform a hardened criminal
| Actor | Role |
|---|---|
 Donald GrayJames Martin | James Martin |
| AAnn WemyssJoan Bauer | Joan Bauer |
 Mary NewcombHelen Rollins | Helen Rollins |
 Ronald WardMichael Waring | Michael Waring |
 Henri De VriesProfessor Bauer | Professor Bauer |
 Alastair Sim'Pop' Lawler | 'Pop' Lawler |
 James CarewDr. Rollins | Dr. Rollins |
 Henry CaineSergeant Cox | Sergeant Cox |
| EEric HalesCarter | Carter |
| JJoana PereiraMiss Bauer | Miss Bauer |
| AArnold BellLeech | Leech |
| LLillian TalbotMrs. Barker | Mrs. Barker |
| MMartin LewisNot listed | Not listed |
| CCharles HowardNot listed | Not listed |