R. Scott Gemmill Creator Noah Wyle Dr. Michael 'Robby' Robinavitch Actor, Executive Producer Patrick Ball Dr. Langdon Actor Supriya Ganesh Dr. Mohan Actor Fiona Dourif Dr. McKay Actor Taylor Dearden Dr. King Actor Isa Briones Dr. Santos Actor Gerran Howell Whitaker Actor Shabana Azeez Javadi Actor Katherine LaNasa Dana Evans Actor Tracy Ifeachor Dra. Heather Collins Actor Simran Baidwan Executive Producer Michael Hissrich Executive Producer Erin Jontow Executive Producer John Wells Executive Producer Amanda Marsalis Director