| Name | Character | Episodes |
|---|---|---|
| Aidan Gillen | Paul Serene | 4 |
| Shawn Ashmore | Jack Joyce | 4 |
| Lance Reddick | Martin Hatch | 4 |
| Jacqueline Pinol | Dr. Sofia Amaral | 4 |
| Dominic Monaghan | William Joyce | 4 |
| Marshall Allman | Carlie Wincott | 4 |
| Courtney Hope | Beth Wilder | 4 |
| Brooke Nevin | Emily Burke | 4 |
| Mimi Michaels | Fiona Miller | 4 |
| Patrick Heusinger | Liam Burke | 4 |
| Amelia Rose Blaire | Amy Ferrero | 4 |