The Duke does not wish Mrs. Grimthorpe to appear as an alibi witness in his murder trial. But if Peter does not bring a vital piece of evidence, Sir Impey will have to call her.
| Name | Type | Role | |
|---|---|---|---|
| Dorothy L. Sayers | Writer | ||
| Anthony Steven | Writer | ||
| Anthony Jacobs | Guest Star | ||
| Alan Judd | Guest Star | ||
| Graham Leaman | Guest Star | ||
| Hugh David | Director |