Parminder Nagra Dr. Neela Rasgotra Actor Linda Cardellini Nurse Samantha Taggart Actor John Stamos Dr. Tony Gates Actor Scott Grimes Dr. Archie Morris Actor David Lyons Dr. Simon Brenner Actor Angela Bassett Dr. Cate Banfield Actor Courtney B. Vance Russell Banfield Guest Star Noah Wyle Dr. John Carter Guest Star Amy Madigan Mary Taggart Guest Star Leland Orser Dr. Lucien Dubenko Guest Star Shannon Woodward Kelly Taggart Guest Star Judy Greer Tildie Mulligan Guest Star Tony Hale Norman Chapman Guest Star Justina Machado Claudia Diaz Guest Star Gil McKinney Dr. Paul Grady Guest Star Ariel Winter Lucy Moore Guest Star David Zabel Executive Producer John Wells Executive Producer