Old friends fight together - but is it too late to stop the sinister Shansheeth?
| Name | Type | Role | |
|---|---|---|---|
| Russell T Davies | Writer | ||
| Philip Hurd-Wood | Guest Star | The Groske | |
| Matt Smith | Guest Star | The Doctor | |
| Paul Kasey | Guest Star | Shansheeth | |
| Jon Glover | Guest Star | Shansheeth | |
| Katy Manning | Guest Star | Jo Jones | |
| Ruari Mears | Guest Star | Shansheeth | |
| Finn Jones | Guest Star | Santiago Jones | |
| Ben Ashley | Guest Star | Shansheeth | |
| Laila Rouass | Guest Star | Colonel Karim | |
| David Bradley | Guest Star | Shansheeth Blue | |
| Jimmy Vee | Guest Star | Groske | |
| Ashley Way | Director |