| Name | Character | Episodes |
|---|---|---|
| Leona Vaughan | Jana | 49 |
| Kedar Williams-Stirling | Tom Okanawe | 40 |
| Bobby Lockwood | Rhydian Morris | 40 |
| Niek Versteeg | Liam Hunter | 40 |
| Jonathan Raggett | Jimi Chen | 40 |
| Louisa Connolly-Burnham | Shannon Kelly | 40 |
| Sydney Wade | Emilia Covaci | 22 |
| Michelle Gayle | Imara Cipriani | 22 |
| Jack Brett Anderson | Matei Covaci | 22 |
| Rukku Nahar | Selina Khan | 22 |
| Bill Fellows | Bernie | 13 |
| Sydney Craven | Hannah | 6 |
| Simone Ashley | Zuhra | 2 |
| Alana Boden | Niamh/Holly | 2 |
| David K.S. Tse | Mr. Chen | 1 |