Noah Wyle Dr. John Carter Actor Laura Innes Dr. Kerry Weaver Actor Alex Kingston Dr. Elizabeth Corday Actor Goran Visnjic Dr. Luka Kovac Actor Maura Tierney Abby Lockhart Actor Sherry Stringfield Dr. Susan Lewis Actor Ming-Na Wen Actor Mekhi Phifer Dr. Gregory Pratt Actor Parminder Nagra Dr. Neela Rasgotra Actor Linda Cardellini Nurse Samantha Taggart Actor Shane West Actor Donal Logue Chuck Martin Guest Star Deezer D Nurse Malik McGrath Guest Star Laura Cerón Nurse Chuny Marquez Guest Star Troy Evans Frank Martin Guest Star Lyn Alicia Henderson Pamela Olbes Guest Star Brian Lester Brian Dumar Guest Star Scott Grimes Dr. Archie Morris Guest Star Jeremy Lee Guest Star Andy Powers Dr. Howard Ritzke Guest Star Mark Elliott Silverberg Urbanus Guest Star Montae Russell Dwight Zadro Guest Star John Wells Executive Producer Michael Crichton Executive Producer Neal Baer Executive Producer Jack Orman Executive Producer