Anthony Edwards Dr. Mark Greene Actor George Clooney Dr. Doug Ross Actor Sherry Stringfield Dr. Susan Lewis Actor Eriq La Salle Dr. Peter Benton Actor Noah Wyle Dr. John Carter Actor Julianna Margulies Head Nurse Carol Hathaway Actor Kathleen Wilhoite Chloe Lewis Guest Star Tyra Ferrell Dr. Sarah Langworthy Guest Star Abraham Benrubi Jerry Markovic Guest Star Rick Rossovich Dr. John 'Tag' Taglieri Guest Star Andrea Parker Linda Farrell Guest Star Richard Brooks Mr. Freeman Guest Star John Terry Dr. David 'Div' Cvetic Guest Star Paul Perri Monty Guest Star Barry Shabaka Henley Detective Guest Star Conni Marie Brazelton Nurse Connie Oligario Guest Star