Guest Stars Megan Byrne as Gladys Miller Shiva Kalaiselvan as Leyla Shinwari Sandra Mae Frank as Dr. Elizabeth Wilder Conner Marx as Ben Meyer Frances Turner as Dr. Lyn Malvo Anna Suzuki as Sandra Fall André Blake as Dr. Claude Baptiste Amaia Arana as Roxana Zamaya Alan Cox as Lyle Eric Robinson Jr. as Brandon Dover Isabel Keating as Mary Wheeler Co Starring Nora Clow as Luna Opal Clow as Luna Matthew Jeffers as Dr. Mark Walsh Olivia Khoshatefeh as Dr. Yasmin Turan Jennifer Betit Yen as Nurse Aimee Kamoe Michael Basile as Paramedic Rob Moreland Teresa Patel as Paramedic Harvell Greta Quispe as Nurse Sabrina Zamabrano Chloe Freeman as Resident Pavan Carey Kerry Flanagan as Marsha Claire Karpen as Dr. Michelle Goldman Dorcas Sowunmi as Dr. Iyawa Metzger Pearl Sun as Theresa Colgan Andrew Polk as Dr. Melvin Skein Jenna Hellmuth as Battalion Fire Chief Franco Omar Ghonim as Simon Edward Heegan as Fireman Patrena Murray as Corrections Ward Guard