Dodo is under the control of WOTAN and attempts to lure the Doctor into a trap, while the rest of WOTAN's slaves begin construction on its robotic War Machines.
| Name | Type | Role | |
|---|---|---|---|
| Ian Stuart Black | Writer | ||
| John Cater | Guest Star | ||
| Alan Curtis | Guest Star | ||
| Roy Godfrey | Guest Star | ||
| Sandra Bryant | Guest Star | ||
| Michael Rathbone | Guest Star | ||
| Desmond Cullum-Jones | Guest Star | ||
| William Mervyn | Guest Star | ||
| Michael Ferguson | Director |