| Raymond Francis | ... | Chief Det. Supt. Tom Lockhart | |
| Eric Lander | ... | Det. Insp. Harry Baxter | |
| David Spenser | ... | Flasher Morgan | |
| Maurice Kaufmann | ... | Tom Jameson | |
| Susan Shaw | ... | Sally Jameson | |
| Frank Williams | ... | Alfred Rinkley | |
| Howard Pays | ... | Billy Watts | |
| Robert Perceval | ... | Marshall | |
| Robert Crewdson | ... | Stranger | |
| Tom Gerard | ... | Johnny Twist | |
| Delia Corrie | ... | Janet Greer | |
| Gerald Turner | ... | Fingerprint man | |
| Alfred Hoffman | ... | Tubby Sykes | |
| Anthony Brown | ... | Dr. Palmer | |
| Henry McGee | ... | Sgt. Nesbitt | |
| Elizabeth Zinn | ... | Nurse (as Liz Zinn) | |
| Noel Dyson | ... | Landlady |
| Episode Crew |
Directed by | |||
| Cyril Coke | |||
| Richard Sidwell | (film sequences) | ||
Writing credits(in alphabetical order) | ||
| Ken Burley | writer | |
| Dennis Spooner | writer | |
Produced by | |||
| Johnny Goodman | .... | producer | |
Production Design by | |||
| Frank Nerini | |||
Other crew | |||
| Glyn Davies | .... | script editor | |
| Main series | Episode guide | Full cast and crew |
| IMDb TV section | IMDb Crime section |