Philip quickly comes to regret volunteering to be a witness in a murder trial.
| Actor | Role |
|---|---|
 Peter SallisPhilip Mallard | Philip Mallard |
 Kenneth J. WarrenJenks | Jenks |
| PPearl CatlinVivienne Mallard | Vivienne Mallard |
| PPeter CockburnNewscaster | Newscaster |
| DDaphne GoddardSecretary | Secretary |
| JJohn GrieveMr. Labourne | Mr. Labourne |
 Basil HensonSalesman | Salesman |
| CCalum MillInspector Dwyer | Inspector Dwyer |
| EEdward OgdenDefending Counsel | Defending Counsel |
 Geoffrey PalmerBasil Mallard | Basil Mallard |
| KKeith PyottJudge | Judge |
 Geoffrey TooneProsecuting Counsel | Prosecuting Counsel |
| PPauline WinterMrs. Glaister | Mrs. Glaister |