Guest Stars Jaicy Elliot as Dr. Taryn Helm Debbie Allen as Dr. Catherine Avery Melissa DuPrey as Dr. Sara Ortiz Robert I. Mesa as Dr. James Chee Phylicia Rashad as Nell Timms Coby Ryan McLaughlin as Chad Anderson Wayne Mackins as Guy Houston Co Starring Sylvia Kwan as Dr. Mabel Tseng Juliette Myers as Paramedic Nicolas Hedges as Liam Hayes Karla E. Rodriguez as Nurse Jayden Haynes-Starr as Austin Hayes Nikki SooHoo as Reese Tim Powell as Police Officer Jason Rennebu as Male Patient