The Rani draws the Doctor's First and Second incarnations into a time tunnel and traps his other incarnations in a time loop in Albert Square, bouncing back and forth between 1973, 1993 and 2013. She is also assembling a vast intergalactic menagerie, and needs an Earthling to complete her collection…
| Name | Type | Role | |
|---|---|---|---|
| John Nathan-Turner | Writer | ||
| David Roden | Writer | ||
| Deepak Verma | Guest Star | ||
| Tom Baker | Guest Star | ||
| Carole Ann Ford | Guest Star | ||
| Nicola Bryant | Guest Star | ||
| Jon Pertwee | Guest Star | ||
| Shobu Kapoor | Guest Star | ||
| Gillian Taylforth | Guest Star | ||
| Bonnie Langford | Guest Star | ||
| Kate O'Mara | Guest Star | ||
| Wendy Richard | Guest Star | ||
| Letitia Dean | Guest Star | ||
| Sarah Sutton | Guest Star | ||
| Pam St. Clement | Guest Star | ||
| Tim Handel | Guest Star | ||
| Peter Davison | Guest Star | ||
| Elisabeth Sladen | Guest Star | ||
| Sam West | Guest Star | ||
| Stuart McDonald | Director |