| Name | Character | Episodes |
|---|---|---|
| Austin Willis | 5 | |
| Barry Morse | 4 | |
| James Doohan | 4 | |
| Patrick Macnee | 4 | |
| Corinne Conley | 3 | |
| Joseph Fürst | 2 | |
| William Shatner | 1 | |
| Murray Matheson | James | 1 |
| Barry Morse | Narrator | 1 |
| Lloyd Bochner | 1 | |
| Patrick Macnee | Essex | 1 |
| Patrick Macnee | poet Brother Sebastien | 1 |
| Patrick Macnee | George | 1 |
| Patrick Macnee | Lieutenant Honeywell | 1 |
| Patrick Macnee | Henty | 1 |
| Joan Blackman | 1 | |
| Austin Willis | Charles Stevens | 1 |
| Austin Willis | John | 1 |
| Austin Willis | Captain of a cargo vessel | 1 |
| Austin Willis | Anthony Pinkerton | 1 |
| Austin Willis | Father | 1 |
| Austin Willis | 'Dr.' Barney Weaver | 1 |