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 | ||
| Derek Seaton | Guest Star | ||
| John Dawson | Guest Star | ||
| Llewellyn Rees | Guest Star | ||
| Peter Pratt | Guest Star | ||
| David Maloney | Director |