Anthony Edwards Dr. Mark Greene Actor Eriq La Salle Dr. Peter Benton Actor 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 Paul McCrane Robert Romano Actor Michael Michele Cleo Finch Actor Erik Palladino Dave Malucci Actor Ming-Na Wen Actor Alex Kapp Brenda Guest Star Judy Parfitt Isabelle Corday Guest Star Paul Freeman Dr. Charles Corday Guest Star Casey Biggs Mike Guest Star Lourdes Benedicto Rena Trujillo Guest Star Mandy Freund Guest Star Ryan Wilson Guest Star Yvette Freeman Nurse Haleh Adams Guest Star Ellen Crawford Nurse Lydia Wright Guest Star Conni Marie Brazelton Nurse Connie Oligario Guest Star John Wells Executive Producer Michael Crichton Executive Producer Neal Baer Executive Producer Jack Orman Executive Producer