Guest Stars Scott Foley as Henry Burton Daniel Sunjata as Nurse Eli Jamie Chung as Trina Paiz Co Starring Payton Silver as Dr. A. Knox Nicole Rubio as Paramedic Nicole Cummins Michael Lesly as Flight Paramedic Carissa Kosta as Nurse Ray Singh as Nurse Howard Barry Livingston as Wayne Sheehan Ken Meseroll as Ron Lenora May as Sheila Joel Bond as Marina Worker Sarah Hunley as Adriana Kay