Callan is lured into going to Berlin, where Hunter wants to use him as a sacrificial lamb to facilitate the planting of a British mole.
| Name | Type | Role | |
|---|---|---|---|
| James Mitchell | Writer | ||
| Robert Lang | Guest Star | ||
| Rosemary Frankau | Guest Star | ||
| Jeremy Lloyd | Guest Star | ||
| Les White | Guest Star | ||
| Gladys Cooper | Guest Star | ||
| Bill Bain | Director |