Guest Stars Matthew Jeffers as Dr. Mark Walsh Shiva Kalaiselvan as Leyla Shinwari Sandra Mae Frank as Dr. Elizabeth Wilder Conner Marx as Ben Meyer Keren Lugo as Dr. Diana Flores Dierdre Friel as Ella Amaia Arana as Roxana Zamaya Ryan Faucett as Trevor Vaughan Jenny Jules as Serwa Sharpe Garrett Young as Adam Wilder Jack Doolan as Colin Nicole Villamil as Delia Jimenez Co Starring Nora Clow as Luna Opal Clow as Luna Olivia Khoshatefeh as Dr. Yasmin Turan Isaiah Seward as Paramedic Durango Ehad Berisha as Resident Huxley Becca Ballenger as Paramedic Goodrich Atibon Nazaire as Maintenance Worker Carl Phoebe Dunn as Waiter Michael Castillejos as Dion Jimenez Jowin Batoon as Trauma Nurse Richard Crawford as Cabbie Malcom Goode Luke Antony Neville as Duncan Griffin Osborne as Ian