| Name | Character | Episodes |
|---|---|---|
| Billy Zane | Joker Jones | 8 |
| Adam Brody | Max Larssen | 8 |
| Sean Bean | The General | 8 |
| Miranda Richardson | Lou | 8 |
| Harriet Walter | Helen Newman | 8 |
| Guz Khan | Cheese | 8 |
| Adrian Lester | Simon Donahue | 8 |
| Malachi Kirby | Michael Garwick | 8 |
| Phoebe Fox | Kaye | 8 |
| Jason Thorpe | El Capitano | 8 |
| Andi Osho | Jenny Donahue | 8 |
| Jessye Romeo | Meg Donahue | 8 |
| Sophia Ally | Simone | 1 |
| Emily Reid | Jessie Brown | 1 |