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 Ming-Na Wen Actor Sherry Stringfield Dr. Susan Lewis Actor Sharif Atkins Actor Mekhi Phifer Dr. Gregory Pratt Actor Linda Cardellini Nurse Samantha Taggart Actor Lisa Vidal Sandy Lopez Guest Star José Zúñiga Eduardo Lopez Guest Star Abraham Benrubi Jerry Markovic Guest Star Laura Cerón Nurse Chuny Marquez Guest Star Deezer D Nurse Malik McGrath Guest Star Armin Shimerman Levine Guest Star Scott Klace Chris Halpern Guest Star Curt Lowens Bob Jones Guest Star Rob McElhenney Andy Fesh Guest Star Renee Victor Florina Lopez Guest Star John Wells Executive Producer Michael Crichton Executive Producer Neal Baer Executive Producer Jack Orman Executive Producer