The crew rescue a protégé of Ensor's who is inexplicably in a murderous rage and somehow controlling the Scorpio.
| Name | Type | Role | |
|---|---|---|---|
| Roger Parkes | Writer | ||
| Douglas Fielding | Guest Star | ||
| Nick Joseph | Guest Star | ||
| Lesley Nunnerley | Guest Star | ||
| John Westbrook | Guest Star | ||
| Lynda Bellingham | Guest Star | ||
| Mary Ridge | Director |