| Name | Character | Episodes |
|---|---|---|
| Andrea Riseborough | Alice Long | 6 |
| Domhnall Gleeson | Jack | 6 |
| Aimee Lou Wood | Maya | 6 |
| Aisling Bea | Lynn | 5 |
| Thalissa Teixeira | Rachel | 2 |
| Rachel Adedeji | Donna | 2 |
| Benjamin Dilloway | Mark | 2 |
| Amanda Lawrence | Dr. Feldshue | 1 |
| Derek Horsham | Balfey | 1 |
| Ella Bruccoleri | Louise | 1 |
| Mark Cameron | Randall | 1 |
| Matthew Cottle | Vicar | 1 |
| Tommy McDonnell | Danny Mitchell | 1 |
| Jack Bence | Hospital Porter | 1 |