| Name | Character | Episodes |
|---|---|---|
| Arthur Hewlett | 2 | |
| Jerome Willis | 1 | |
| Colin Jeavons | 1 | |
| Joan Greenwood | 1 | |
| Keith Barron | 1 | |
| David Kelly | 1 | |
| Stephanie Beacham | 1 | |
| Charles Gray | 1 | |
| Paul Maxwell | 1 | |
| Bernard Lee | 1 | |
| Frederick Jaeger | 1 | |
| Roy Dotrice | 1 | |
| Bernard Archard | 1 | |
| William Squire | 1 | |
| Michael Gothard | 1 | |
| Sheila White | 1 | |
| Roy Marsden | 1 | |
| Philip Bond | 1 | |
| David Healy | 1 | |
| Garfield Morgan | 1 | |
| David Bauer | 1 | |
| Jennifer Daniel | 1 | |
| Anne Stallybrass | 1 | |
| Grant Taylor | 1 | |
| Janet Henfrey | 1 | |
| John Barrie | 1 | |
| Declan Mulholland | 1 | |
| Damaris Hayman | 1 | |
| Michael Barrington | 1 | |
| Kynaston Reeves | Sir Henry | 1 |
| Kenneth Benda | Sir Maurice Cope | 1 |
| Takis Emmanuel | Romero | 1 |
| Ronald Rubin | Roy | 1 |
| Walter Horsbrugh | Dr. Mackenzie | 1 |