Enrico Colantoni Sgt. Gregory Parker Actor Hugh Dillon Ed Lane Actor Amy Jo Johnson Julianna "Jules" Callaghan Actor David Paetkau Sam Braddock Actor Michael Shanks David Fleming Guest Star Frank Chiesurin Vince Albin Guest Star Tony Nappo Kenton Guest Star Rachel Skarsten Natalie Braddock Guest Star Sergio Di Zio Michelangelo 'Spike' Scarlatti Guest Star Clé Bennett Rafik 'Raf' Rousseau Guest Star Jamie Spilchuk Hollings Guest Star John Robinson Unit Commander Guest Star Tattiawna Jones Winnie Camden Guest Star Bill Mustos Executive Producer Tessie Cameron Executive Producer Anne Marie La Traverse Executive Producer