Harold believes that he has finally found an item that can make him rich.
| Name | Type | Role | |
|---|---|---|---|
| Ray Galton | Writer | ||
| Alan Simpson | Writer | ||
| Philip Howard | Guest Star | ||
| William Raynor | Guest Star | ||
| Peter Thompson | Guest Star | ||
| Frank Littlewood | Guest Star | ||
| Basil Dignam | Guest Star | ||
| Derek Nimmo | Guest Star | ||
| Mark Singleton | Guest Star | ||
| Tim Buckland | Guest Star | ||
| Ralph Nossek | Guest Star |