| Name | Character | Episodes |
|---|---|---|
| John Lee | 2 | |
| Tony Jay | Colonel Jalbout | 1 |
| Robert Glenister | 1 | |
| Paul Seed | 1 | |
| Emrys James | 1 | |
| Jack May | 1 | |
| Geoffrey Beevers | 1 | |
| Janet Suzman | 1 | |
| Tim Barlow | 1 | |
| Sheila Keith | 1 | |
| Marc Zuber | 1 | |
| Morris Perry | 1 | |
| Martin Wimbush | Ian Smith | 1 |
| Mark Jones | 1 | |
| Richard Mayes | 1 | |
| William Fox | 1 |