Was the murdered girlfriend of a missing sailor selling coded secrets?
| Name | Type | Role | |
|---|---|---|---|
| Stephen Yardley | Guest Star | ||
| Judy Geeson | Guest Star | ||
| Bernard Bresslaw | Guest Star | ||
| Patricia Haines | Guest Star | ||
| Brian Worth | Guest Star | ||
| Fredric Abbott | Guest Star | ||
| Judy Geesen | Guest Star | ||
| Anita West | Guest Star | ||
| Richard Caldicott | Guest Star |