| Name | Character | Episodes |
|---|---|---|
| Ben Whishaw | 8 | |
| Alan Cumming | 8 | |
| Russell Tovey | 8 | |
| Gemma Whelan | 8 | |
| Fionn Whitehead | 8 | |
| Ian Gelder | 8 | |
| Ben Whishaw | Perce | 1 |
| Alan Cumming | Steve | 1 |
| Russell Tovey | Phil | 1 |
| Gemma Whelan | Bobby | 1 |
| Rebecca Front | Alice | 1 |
| Fionn Whitehead | Andrew | 1 |
| Ian Gelder | Jackie | 1 |