Steven discovers the harsh truth about travelling in time with the Doctor.
| Name | Type | Role | |
|---|---|---|---|
| Donald Tosh | Writer | ||
| John Lucarotti | Writer | ||
| Jack Tarran | Guest Star | ||
| John Tillinger | Guest Star | ||
| Michael Bilton | Guest Star | ||
| John Slavid | Guest Star | ||
| Joan Young | Guest Star | ||
| André Morell | Guest Star | ||
| Leslie Bates | Guest Star | ||
| Eric Thompson | Guest Star | ||
| Annette Robinson | Guest Star | ||
| Paddy Russell | Director |