Guest Stars Lili Bordán as Dr. Becca Kelly John Pyper-Ferguson as Tech Sgt. Xander Toth Sebastian Spence as Lt. Jim Kirby Ty Olsson as Osiris Helmsman Karen LeBlanc as Lt. Jenna Jill Teed as Commander Ozar Brian Markinson as Commander Silas Nash Co Starring Mike Dopud as Deke Tornvald Terry Chen as Crew Chief Tiu Carmen Moore as Nina Leothe Adrian Holmes as Zachary Elias Toby Levins as Pilot Sandman Tom Stevens as Marine Baris Zak Santiago as Captain Diaz Serge Jaswal as BSG CIC Marine Aaron Hughes as Army Medic Zach Martin as Marine Strohmeyer Colin Corrigan as Osirus Marine Jordan Weller as Rookie Pilot Seamus Leo Chiang as Osiris Marine Sergeant