Anthony Edwards Dr. Mark Greene Actor George Clooney Dr. Doug Ross Actor Eriq La Salle Dr. Peter Benton Actor Noah Wyle Dr. John Carter Actor Julianna Margulies Head Nurse Carol Hathaway Actor Gloria Reuben Jeanie Boulet Actor Laura Innes Dr. Kerry Weaver Actor Alex Kingston Dr. Elizabeth Corday Actor Maria Bello Dr. Anna Del Amico Actor Pete Wilcox Over-the-Hill Elvis Guest Star Rick Alviti Junior Elvis Guest Star James Le Gros Dr. Max Rocher Guest Star Carrie Snodgress Mrs. Lang Guest Star Bellina Logan Nurse Kit Guest Star Erica Gimpel Adele Newman Guest Star David Brisbin Dr. Alexander Babcock Guest Star Tara Chocol Vicki McNeal Guest Star Gina Mastrogiacomo Ms. Myra Guest Star Roger Robinson Mr. Wass Guest Star Michael Crichton Executive Producer John Wells Executive Producer