Maura Tierney Abby Lockhart Actor Mekhi Phifer Dr. Gregory Pratt Actor Parminder Nagra Dr. Neela Rasgotra Actor Linda Cardellini Nurse Samantha Taggart Actor Scott Grimes Dr. Archie Morris Actor John Stamos Dr. Tony Gates Actor Steven Christopher Parker Guest Star Reiko Aylesworth Julia Dupree Guest Star John Aylward Dr. Donald Anspaugh Guest Star Patrick Cassidy Dr. Ramsey Guest Star Charles Esten Dr. Barry Grossman Guest Star Robert Gossett Dr. Everett Daniels Guest Star Rebecca Hazlewood Jaspreet Guest Star J.P. Manoux Dr. Dustin Crenshaw Guest Star Lorraine Toussaint Yolanda Guest Star Jesse Borrego Javier Guest Star Christopher Chulack Executive Producer Michael Crichton Executive Producer David Zabel Executive Producer John Wells Executive Producer R. Scott Gemmill Executive Producer