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 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 Eion Bailey Jake Scanlon Guest Star Scott Grimes Dr. Archie Morris Guest Star Leland Orser Dr. Lucien Dubenko Guest Star Abraham Benrubi Jerry Markovic Guest Star Yvette Freeman Nurse Haleh Adams Guest Star Emily Harrison Michelle Guest Star Alexa Nikolas Megan Nesbitt Guest Star Jamie Rose Marilyn Bracken Guest Star Geoffrey Wigdor Anthony Guest Star John Wells Executive Producer Michael Crichton Executive Producer Neal Baer Executive Producer Jack Orman Executive Producer