Simon is marked for death by a Union boss.
| Name | Type | Role | |
|---|---|---|---|
| Gerald Kelsey | Writer | ||
| Dick Sharples | Writer | ||
| David Kossoff | Guest Star | Herman | |
| John Ainsworth | Director | ||
| Leslie Charteris | Director | ||
| Robert Ayres | Actor | Clinton | |
| Clay Johns | Actor | Floor manager | |
| Percy Herbert | Actor | Hoppy | |
| Nicholas Stuart | Actor | Dr. Grant | |
| Alan Gifford | Actor | Inspector Fernack | |
| Dorinda Stevens | Actor | Verna | |
| Roger Moore | Actor | Simon Templar | |
| Sally Bazely | Actor | Jenny Hallam | |
| George Sperdakos | Actor | Ricci | |
| Gary Cockrell | Actor | Lester Boyd | |
| Jared Allen | Actor | Telephone repair man | |
| Peter Dyneley | Actor | Nat Grendel |