Ryan Eggold Dr. Max Goodwin Actor Freema Agyeman Dr. Helen Sharpe Actor Janet Montgomery Dr. Lauren Bloom Actor Jocko Sims Dr. Floyd Reynolds Actor Tyler Labine Dr. Iggy Frome Actor Anupam Kher Dr. Vijay Kapoor Actor Daniel Dae Kim Dr. Cassian Shin Guest Star Erick Betancourt Security Guard McAdams Guest Star Liba Vaynberg ICU Nurse April Kosloff Guest Star Megan Byrne Gladys Guest Star Dierdre Friel Ella Guest Star Marvin Avila ICU Nurse Ocampo Guest Star Candice Jean-Jacques Brenna Argento Guest Star Arash Mokhtar Dr. Aldo Vartka Guest Star Debra Monk Chairwoman Karen Brantley Guest Star Keren Lugo Dr. Diana Flores Guest Star Makia Martin Patient Denise Guest Star Naaji Kenn Patient Rosalee Guest Star Sandra Berrios Patient Susanna Guest Star Ray DeMattis Patient Carl Guest Star Brian Lucas Patient Rodrigo Guest Star Sam Kebede Messenger Carter Guest Star Shaquita Smith Anesthetist Guest Star Krystal Torres Agent Douglas Guest Star Esteban Suero Paul Argento Guest Star Kimye Corwin Dr. Jan Matsudaira Guest Star Jax Jackson Patient Luol Guest Star Shadrack Boakye Messenger Braden Guest Star Jojo Brown Messenger Kaina Guest Star Erikka Makic Agent Sully Guest Star Mahalet Dejene Anesthesiologist Guest Star David Schulner Executive Producer Peter Horton Executive Producer Michael Slovis Executive Producer, Director David Foster Executive Producer, Writer Aaron Ginsburg Executive Producer Shaun Cassidy Executive Producer