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 Paul McCrane Robert Romano Actor Ming-Na Wen Actor Sherry Stringfield Dr. Susan Lewis Actor Sharif Atkins Actor Mekhi Phifer Dr. Gregory Pratt Actor Bob Newhart Ben Hollander Guest Star Linda Cardellini Nurse Samantha Taggart Guest Star Bruno Campos Dr. Eddie Dorset Guest Star Parminder Nagra Dr. Neela Rasgotra Guest Star Scott Grimes Dr. Archie Morris Guest Star Laura Cerón Nurse Chuny Marquez Guest Star Troy Evans Frank Martin Guest Star Montae Russell Dwight Zadro Guest Star Daniel Dae Kim Ken Sung Guest Star Gavin Fink Henry Martin Guest Star John Wells Executive Producer Michael Crichton Executive Producer Neal Baer Executive Producer Jack Orman Executive Producer