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 Linda Cardellini Nurse Samantha Taggart Actor Bill Macy Richard Gould Guest Star Parminder Nagra Dr. Neela Rasgotra Guest Star James Earl Elgin Gibbs Guest Star Sam Sarpong Antwan Guest Star Cole Hauser Steve Curtis Guest Star Cynthia Ettinger Linda Pryor Guest Star Laura Cerón Nurse Chuny Marquez Guest Star Deezer D Nurse Malik McGrath Guest Star Troy Evans Frank Martin Guest Star Kyle Richards Nurse Dori Guest Star John Wells Executive Producer Michael Crichton Executive Producer Neal Baer Executive Producer Jack Orman Executive Producer