The Sontarans have invaded Gallifrey, seeking to seize the incredible power of the Time Lords. The Doctor's first step is to cut them off from their fleet. But Kelner is helping the enemy…
| Name | Type | Role | |
|---|---|---|---|
| Anthony Read | Writer | ||
| Graham Williams | Writer | ||
| Michael Mundell | Guest Star | ||
| Gai Smith | Guest Star | ||
| Derek Deadman | Guest Star | ||
| Ray Callaghan | Guest Star | ||
| Gerald Blake | Director |