Lucie calls for the Doctor’s help as Earth faces sickness, invasion, and the return of the Daleks, but the Doctor is nowhere to be found.
| Name | Type | Role | |
|---|---|---|---|
| Nicholas Briggs | Guest Star | The Daleks | |
| Graeme Garden | Guest Star | The Monk | |
| Sheridan Smith | Guest Star | Lucie Miller | |
| Niky Wardley | Guest Star | Tamsin Drew | |
| Carole Ann Ford | Guest Star | Susan Campbell |