Secret documents fall into the wrong hands.
| Name | Type | Role | |
|---|---|---|---|
| Ralph Smart | Writer | ||
| Philip Broadley | Writer | ||
| Joan Greenwood | Guest Star | ||
| Oliver MacGroovy | Guest Star | ||
| Aubrey Morris | Guest Star | ||
| Simon Lack | Guest Star | ||
| Peter Stephens | Guest Star | ||
| Alarice Gordon | Guest Star | ||
| Keneth J. Warren | Guest Star | ||
| Guido Addrini | Guest Star | ||
| Ferdy Mayne | Guest Star | ||
| Patrick McGoohan | Director |