Lord Peter almost loses his life in the bog but is rescued and recovers in Grimthorpe farmhouse, where he stumbles onto some crucial evidence.
| Name | Type | Role | |
|---|---|---|---|
| Anthony Steven | Writer | ||
| Dorothy L. Sayers | Writer | ||
| Eric Francis | Guest Star | ||
| Gerry Cowan | Guest Star | ||
| Toke Townley | Guest Star | ||
| Christopher Hodge | Guest Star | ||
| Pamela Denton | Guest Star | ||
| Bert Palmer | Guest Star | ||
| Hugh David | Director |