London, 1985. The alien mercenary Lytton has been stranded here for nearly a year, but now he has a plan to escape. But how does it involve the Doctor's old enemies - and why are they on Earth at this point in history?
| Name | Type | Role | |
|---|---|---|---|
| Paula Moore | Writer | ||
| Eric Saward | Writer | ||
| John Ainley | Guest Star | ||
| Jonathan David | Guest Star | ||
| Stephen Churchett | Guest Star | ||
| Brian Orrell | Guest Star | ||
| Stephen Wale | Guest Star | ||
| Brian Glover | Guest Star | ||
| James Beckett | Guest Star | ||
| Matthew Robinson | Director |