Guest Stars Brennan Brown as Dr. Samuel Abrams Nate Santana as Dr. James Lanik Cynthia Addai Robinson as Dr. Vicki Glass Anna Enger Ritch as FBI Special Agent Ingrid Lee Martasia Jones as Keegan Co Starring Lorena Diaz as Nurse Doris Courtney Rioux as Paramedic Courtney Jeremy Shouldis as Dr. Marty Peterson Cesar Jaime as Paramedic Cesar Casey Tutton as Nurse Monique Lawson Desmond Gray as Paramedic Desmond Michael Vaughn Shaw as X-Ray Tech Mike Sia A. Moody as Dr. Ivy Davis Kathryn Acosta as Mary Brice