The President of the High Council has been killed and the Doctor is the prime suspect. The Time Lords are eager to dispense quick justice and the Doctor must race agains the clock to discover the truth... and an old enemy.
| Name | Type | Role | |
|---|---|---|---|
| Robert Holmes | Writer | ||
| Peter Pratt | Guest Star | ||
| Derek Seaton | Guest Star | ||
| John Dawson | Guest Star | ||
| Llewellyn Rees | Guest Star | ||
| David Maloney | Director |