| Name | Character | Episodes |
|---|---|---|
| Tom Goodman-Hill | Gerard | 8 |
| Emma Thompson | Zoë Boehm | 1 |
| Adeel Akhtar | Hamza | 1 |
| Sinead Matthews | Denise | 1 |
| Adam Godley | Joe Silverman | 1 |
| Darren Boyd | C | 1 |
| Ruth Wilson | Sarah Tucker | 1 |
| Tom Riley | Mark | 1 |
| Nathan Stewart-Jarrett | Downey | 1 |
| Aiysha Hart | Paula | 1 |
| Fehinti Balogun | Amos | 1 |