| Name | Character | Episodes |
|---|---|---|
| Tobias Menzies | Raymond | 5 |
| Minnie Driver | Frances Kelly | 5 |
| Antonia Thomas | Maddy | 5 |
| Richard Brake | McIndoe | 5 |
| Sinéad Cusack | Meg Sinclair | 5 |
| Goran Višnjić | Samson | 5 |
| James Nesbitt | Clem Donnelly | 5 |
| Orla Brady | Catherine | 5 |
| Sacha Dhawan | Vincent | 5 |