John Drake travels to the Scottish Highlands when the fingerprints of a stolen car belong to a master spy believed to have been killed ten years earlier.
| Name | Type | Role | |
|---|---|---|---|
| Ralph Smart | Writer | ||
| Marc Brandel | Writer | ||
| Reginald Hearne | Guest Star | ||
| Ewan Roberts | Guest Star | ||
| Gareth Tandy | Guest Star | ||
| Andrew Crawford | Guest Star | ||
| Paul Rogers | Guest Star | ||
| John Glyn-Jones | Guest Star | ||
| Raymond Huntley | Guest Star | ||
| Wendy Craig | Guest Star | ||
| John Rae | Guest Star | ||
| Finlay Currie | Guest Star | ||
| Michael Bird | Guest Star | ||
| Michael Truman | Director |