| cast |
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| Series Regulars | |||
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| Enrico Colantoni | Enrico Colantoni as Sgt. Gregory Parker | Amy Jo Johnson | Amy Jo Johnson as Jules Callaghan |
| Hugh Dillon | Hugh Dillon as Ed Lane | Sergio Di Zio | Sergio Di Zio as Mike Scarlatti |
| David Paetkau | David Paetkau as Sam Braddock | Michael Cram | Michael Cram as Kevin Wordsworth |
| Mark Taylor | Mark Taylor as Lewis Young | Ruth Marshall | Ruth Marshall as Dr. Amanda Luria |
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| Recurring & Guests | |||
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| Jessica Steen | Jessica Steen as Donna Sabine | Clé Bennett | Clé Bennett as Rafik "Raf" Rousseau |
| Lisa Marcos | Lisa Marcos as Sally LaFlamme | Rachel Skarsten | Rachel Skarsten as Natalie Braddock |