Guest Stars Nate Santana as Dr. James Lanik Mekia Cox as Robin Charles Arden Cho as Emily Choi D.W. Moffett as Cornelius Rhodes Heather Headley as Gwen Garrett Paula Newsome as Caroline Charles Anna Enger Ritch as FBI Special Agent Ingrid Lee Dalton Harrod as David Novak Melanie Keller as Edie Thompson Anna Wren Fry as Lily Cooper Brian Hutchison as Joseph Cooper Co Starring Casey Tutton as Nurse Monique Lawson C. Anthony Jackson as Security Guard Earl Melissa Canciller as Nurse Melissa Emily Marso as Surgical Nurse Susie Dalton David Vogel as Captain Lewis Amir Henderson as Joshua Williams Julia Atkin as Mia Danny W. Miller as SWAT Officer Ricky Rudolph Sr. as Sniper James