Series episode
| Kevin Alejandro | ... | Jayce |
| JB Blanc | ... | Bolbok |
| Kimberly Brooks | ... | Sky |
| Imogen Faires | ... | Young Mel |
| Remy Hii | ... | Mr. Kiramman |
| Josh Keaton | ... | Salo / Gorgeous Man |
| Katie Leung | ... | Caitlyn |
| Erica Lindbeck | ... | Elora |
| Harry Lloyd | ... | Viktor |
| Abigail Marlowe | ... | Mrs. Kiramman |
| Dave B. Mitchell | ... | Hoskel |
| Toks Olagundoye | ... | Mel Medarda |
| Ella Purnell | ... | Jinx |
| Reed Shannon | ... | Ekko |
| Jason Spisak | ... | Silco |
| Hailee Steinfeld | ... | Vi |
| Ellen Thomas | ... | Ambessa Medarda |
| Brett Tucker | ... | Singed / Sergeant Billingsworth |
| Amirah Vann | ... | Sevika |
| Mick Wingert | ... | Heimerdinger |
| Miyavi | ... | Finn |
| Mara Junot | ... | Shoola |
| Pascal Charrue Arnaud Delord | ... | Direction |
| Mollie Bickley St. John | ... | Script |