| Name | Character | Episodes |
|---|---|---|
| Mark Bonnar | Max McCall | 12 |
| Emun Elliott | Kenny Burns | 12 |
| Henry Pettigrew | Stevie Malone | 10 |
| Jamie Sives | Jake McCall | 10 |
| Phyllis Logan | Maggie Lynch | 8 |
| Ellie Haddington | Sheila Gemmell | 6 |
| Ruth Bradley | Angie Curtis | 5 |
| Stuart Bowman | Roy Lynch | 5 |
| Sara Vickers | Erin | 4 |
| Ian Pirie | Sandy | 4 |
| Sian Brooke | Claire McCall | 4 |
| Michael Nardone | Henry McKinnon | 4 |
| Rochelle Neil | Yvonne | 4 |
| Euan Macnaughton | Sir Jim Sturrock | 4 |
| Greg McHugh | Teddy | 4 |
| Greg McHugh | Teddy McLean | 4 |
| Moyo Akandé | Tina Hicks | 4 |
| Anita Vettesse | Carrie Tortolano | 4 |
| Tamsin Topolski | Aliza Hillerby | 3 |
| Noof Ousellam | Cameron Lovat | 3 |
| Kim Allan | Carol | 3 |
| David Hayman | Alec McCall | 2 |
| Hari Dhillon | Richard | 2 |
| Robin Laing | Adrian | 2 |
| Bill Paterson | Roy Lynch | 2 |
| Anneika Rose | DC Nicola Bowman | 2 |
| Carol Ann Crawford | Joan | 2 |
| Henry Pettigrew | DC Stevie Malone | 1 |
| Angus Miller | Zack | 1 |
| Sara Vickers | Erin McKee | 1 |
| Thoren Ferguson | Paul | 1 |
| Jimmy Yuill | Albert | 1 |
| Adam McNamara | Builder | 1 |
| Tereza Dušková | Lena | 1 |