| Name | Character | Episodes |
|---|---|---|
| Paul Freeman | Oliver Benthall | 1 |
| Kenneth Gilbert | Peter Ward | 1 |
| Trevor Howard | Mavor | 1 |
| Lynn Farleigh | Virginia Ward | 1 |
| Jack Shepherd | Mark Hawkins | 1 |
| Patrick Allen | Cummings | 1 |
| Will Knightley | Randwell | 1 |
| Patrick Godfrey | Russell | 1 |
| Don Henderson | Easterman | 1 |
| Tony Britton | Sir Wilfred Grafton | 1 |
| Peter Dennis | Jack Greenwell | 1 |
| Geoffrey Leesley | Gym Master | 1 |
| David Foxxe | Constable Hallam | 1 |
| Brian Stirner | Toby Grafton | 1 |
| Gwen Nelson | Mrs. Withers | 1 |
| Maryann Turner | Alice Mavor | 1 |
| Max Harris | Matthew Ward | 1 |