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 Parminder Nagra Dr. Neela Rasgotra Actor Mekhi Phifer Dr. Gregory Pratt Actor Bruno Campos Dr. Eddie Dorset Guest Star Paul Cassel Ed Gamble Guest Star Richard Cox Rick Mathers Guest Star Rhyon Nicole Brown Erika Crawford Guest Star Simone-Elise Girard Gillian Guest Star Scott Grimes Dr. Archie Morris Guest Star Mark Valley Richard Lockhart Guest Star Abraham Benrubi Jerry Markovic Guest Star Deezer D Nurse Malik McGrath Guest Star Troy Evans Frank Martin Guest Star John Wells Executive Producer Michael Crichton Executive Producer Neal Baer Executive Producer Jack Orman Executive Producer