Guest Stars Kelly Hu as Dr. Anna Yoon Ajarae Coleman as Marlene Bell Katherine Crawford as Lieutenant Krista Vreeland Co Starring Steven Waldren as Officer Roy Tahj Vaughans as Security Guard Eduardo Losan as Lab Tech Reece Rios as Dr. Caleb Lyons Jeremy Harrison as Gabriel Ridley David Lind as Max Cahill Tristan Tierce as Eddie Ridley Vinicia Smothers as Nurse Ashley Winfrey as Screaming Woman