| Name | Type | Role | |
|---|---|---|---|
| Nicholas Briggs | Writer | ||
| Jason Haigh-Ellery | Producer | ||
| Gary Russell | Producer | ||
| Nicholas Briggs | Musical Guest | ||
| Nicholas Briggs | Guest Star | The Temperon / Drudgers | |
| Nicholas Pegg | Guest Star | Delegate | |
| Andrew Fettes | Guest Star | Commander Raldeth / Schmidt | |
| Michael Wade | Guest Star | The President | |
| Peter Davison | Guest Star | The Doctor | |
| Mark Gatiss | Guest Star | Captain Schwieger / Captain / Knight 2 | |
| John Wadmore | Guest Star | Commandant / Lt Zentener / Pilot Azimendah / Sub-Commander Solanec | |
| Colin Baker | Guest Star | The Doctor | |
| Anthony Keetch | Guest Star | Coordinator Vansell | |
| Sylvester McCoy | Guest Star | The Doctor | |
| Colin McIntyre | Guest Star | Sancroff | |
| Stephen Cole | Executive Producer | ||
| Nicholas Briggs | Director |