The Doctor finally discovers the truth about the drug smuggling ring. But the villains are still one step ahead.
| Name | Type | Role | |
|---|---|---|---|
| Bob Baker | Writer | ||
| Geoffrey Bateman | Guest Star | ||
| Barry Andrews | Guest Star | ||
| Sebastian Stride | Guest Star | ||
| Eden Phillips | Guest Star | ||
| Lewis Fiander | Guest Star | ||
| Jennifer Lonsdale | Guest Star | ||
| Alan Bromley | Director |