| Name | Character | Episodes |
|---|---|---|
| Matthew Beard | Adrian | 6 |
| Haruka Abe | Tomiko Teshima | 6 |
| Simona Brown | Tess / Mania | 6 |
| Tallulah Haddon | Leila / Shadowfax | 6 |
| Matthew Aubrey | Jonty | 5 |
| Philip Arditti | Azul | 5 |
| Geraldine Somerville | Ruth Palmer | 4 |
| Hayley Carmichael | Myra | 4 |
| Haruka Abe | Tippi | 4 |
| Samuel Bottomley | Denier / Ben Graham | 4 |
| Misia Butler | Jocasta | 3 |
| Misia Butler | Jocasta / Jack | 2 |
| Luke Thompson | Connor | 2 |
| Pooky Quesnel | Marion | 2 |
| Freddie Stewart | Force / Kyle | 2 |
| Juliet Cowan | Carer | 1 |
| Ben Chaplin | Beam | 1 |
| Zoe Telford | Tracey | 1 |
| Haruka Abe | Tippi / Tomiko | 1 |
| Samuel Bottomley | Denier | 1 |
| John Macmillan | Saul Green | 1 |
| April Pearson | Polly | 1 |
| Adrianna Bertola | Care Home Girl | 1 |
| Ania Sowinski | Maja Niemec | 1 |
| Freddie Stewart | Force | 1 |
| Lauren Ward | Mrs. Klasna | 1 |
| Tyrone Huggins | Vincent | 1 |