| Name | Character | Episodes |
|---|---|---|
| Dennis Quaid | Samuel Brukner | 20 |
| Cary Elwes | Arthur Davenport | 20 |
| Kate Bosworth | Roxanna Whitman | 20 |
| Patrick Sabongui | Hassan Al Afshar | 20 |
| Christian Cooke | Graham Connor | 20 |
| Eugene Clark | Edward Leigh Mason | 20 |
| Peter Outerbridge | Ashbel Whitman | 10 |
| Noam Jenkins | Richard Swift | 7 |
| Marco Grazzini | Gonzalo Silas | 3 |
| Sean Baek | Simon Peng | 3 |
| Tamara Brown | Nurse Baldwin | 1 |