Mekhi Phifer Dr. Gregory Pratt Actor Maura Tierney Abby Lockhart Actor Linda Cardellini Nurse Samantha Taggart Actor Goran Visnjic Dr. Luka Kovac Actor Parminder Nagra Dr. Neela Rasgotra Actor Shane West Actor Scott Grimes Dr. Archie Morris Actor Laura Innes Dr. Kerry Weaver Actor Sara Gilbert Jane Figler Guest Star Corey Stoll Teddy Marsh Guest Star Laura Cerón Nurse Chuny Marquez Guest Star Troy Evans Frank Martin Guest Star Yvette Freeman Nurse Haleh Adams Guest Star Kyle Richards Nurse Dori Guest Star Noel Arthur Sgt. Parker Guest Star Anastasia Basil Detective Weiss Guest Star Dominic Janes Alex Taggart Guest Star Lyn Alicia Henderson Pamela Olbes Guest Star John Wells Executive Producer Michael Crichton Executive Producer Neal Baer Executive Producer Jack Orman Executive Producer