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 Sara Gilbert Jane Figler Guest Star Leland Orser Dr. Lucien Dubenko Guest Star Busy Philipps Hope Bobeck Guest Star Julia Ling Mae Lee Park Guest Star J.P. Manoux Dr. Dustin Crenshaw Guest Star Glenn Plummer Timmy Rawlins Guest Star Laura Cerón Nurse Chuny Marquez Guest Star Deezer D Nurse Malik McGrath Guest Star Troy Evans Frank Martin Guest Star Christopher Chulack Executive Producer Michael Crichton Executive Producer David Zabel Executive Producer John Wells Executive Producer R. Scott Gemmill Executive Producer