Overview
At the height of the London blitz, Dr Lennox Collins, pioneer of the new forensic science, is enlisted by DI Wilkins after prostitute Mary Williams is strangled and a swastika carved on her tongue.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 26 | 38 | |
 | 35 | 48 | |
 | 27 | 39 | |
 | 61 | 73 | |
 | - | - | |
 | - | - | |
 | 30 | 42 | |
 | - | - | |
 | 60 | 72 | |
 | - | - |