| Doc Brown | - | Duncan Duff |
| Rory Campbell | - | Brian Pettifer |
| Cameron Dicks | - | Ken Drury |
| Hamish Macbeth | - | Robert Carlyle |
| Alexandra MacLaine | - | Valerie Gogan |
| Zoot Macpherrin | - | Ron Donachie |
| Lachie McCrae Jnr | - | Stuart Davids |
| Lachlan McCrae | - | Jimmy Yuill - series one |
| Billy Ridoch (series two and three) | ||
| TV John McIver | - | Ralph Riach |
| Malachi McBean | - | Philip Jackson |
| Agnes Meldrum | - | Barbara Rafferty |
| Barney Meldrum | - | Stuart McGugan |
| Esme Murray | - | Anne Lacey |
| Isobel Sutherland | - | Shirley Henderson |
| Inspector Bruce | - | Bill Leadbitter |