A cat and mouse game develops between a big man of crime and a young detective constable. But the big man doesn't realize, that this mouse roars.
| Name | Type | Role | |
|---|---|---|---|
| Harry Hutchinson | Guest Star | ||
| John Hollis | Guest Star | ||
| Arthur White | Guest Star | ||
| Richard Beckinsale | Guest Star | ||
| Cynthia Bizeray | Guest Star | ||
| Barry Linehan | Guest Star | ||
| Robin Wentworth | Guest Star | ||
| Bryan Pringle | Guest Star |