Guest Stars Nate Santana as Dr. James Lanik Molly Bernard as Med Student Elsa Currie Taylor Kinney as Lieutenant Kelly Severide Joe Miñoso as Firefighter Joe Cruz Mandy June Turpin as Kathy Duncan P.J. Sosko as Bruce Green Tricia Paoluccio as Carol Green Christopher Convery as Jesse Green Lauren Potter as Barbara Duncan Co Starring Courtney Rioux as Paramedic Courtney Jeremy Shouldis as Dr. Marty Peterson Casey Tutton as Nurse Monique Lawson Amanda Marcheschi as Nurse Dina Garston Mia Park as Nurse Beth Cole Carlos Rogelio Diaz as Nurse Hank Logan Arvin A. Jalandoon as Perfusionist Paul Deakins Susaan Jamshidi as MRI Tech Rosie Abbasi Marcela Muñoz as Maria Flores Alejandro Ortiz as Pete Flores John Cates as Pilot