Goran Visnjic Dr. Luka Kovac Actor Maura Tierney Abby Lockhart Actor Mekhi Phifer Dr. Gregory Pratt Actor Parminder Nagra Dr. Neela Rasgotra Actor Linda Cardellini Nurse Samantha Taggart Actor Shane West Actor Scott Grimes Dr. Archie Morris Actor Laura Innes Dr. Kerry Weaver Actor John Stamos Dr. Tony Gates Actor Stanley Tucci Dr. Kevin Moretti Guest Star Leland Orser Dr. Lucien Dubenko Guest Star David Clennon Jared Morgan Guest Star Elden Henson Fingerless Guy Guest Star Howard Hesseman Dr. James Broderick Guest Star J.P. Manoux Dr. Dustin Crenshaw Guest Star Laura Cerón Nurse Chuny Marquez Guest Star Troy Evans Frank Martin Guest Star Joe Manganiello Officer Litchman Guest Star Lily Mariye Nurse Lily Jarvik Guest Star Christopher Chulack Executive Producer Michael Crichton Executive Producer David Zabel Executive Producer John Wells Executive Producer R. Scott Gemmill Executive Producer