Guest Stars Jamie McShane as Capt. Greyson Lindell Emily Swallow as Dr. Natalie Pierce Adelaide Kane as Rebecca Bowen Lucca De Oliveira as Vic Lopez Stephen Bishop as Master Chief Winston Blake Sumalee Montano as Agent Susan Carver Robert Cicchini as Dr. Bernstein Co Starring Tyler Grey as Trent Sawyer Justin Melnick as Brock Reynolds Scott Foxx as Scott Carter Erin Barnes as Nurse Caitlyn Jovan Gulan as Agent Jackson Sprole