On Gallifrey, someone on the high council is perpetrating a treasonous act - transmitting the Doctor's bio-extract from the space/time matrix to an anti-matter being. On Earth, two English lads spend their last night in Amsterdam sleeping in a crypt where they're attacked by an alien creature under the same anti-matter being's control.
| Name | Type | Role | |
|---|---|---|---|
| Johnny Byrne | Writer | ||
| Andrew Boxer | Guest Star | ||
| Neil Daglish | Guest Star | ||
| Alastair Cumming | Guest Star | ||
| John D. Collins | Guest Star | ||
| Maya Woolfe | Guest Star | ||
| Elspet Gray | Guest Star | ||
| Malcolm Harvey | Guest Star | ||
| Max Harvey | Guest Star | ||
| Ron Jones | Director |