Anthony Edwards Dr. Mark Greene Actor Noah Wyle Dr. John Carter Actor Eriq La Salle Dr. Peter Benton Actor Laura Innes Dr. Kerry Weaver Actor, Director 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 Ming-Na Wen Actor Sherry Stringfield Dr. Susan Lewis Actor Julie Delpy Nicole Guest Star Hallee Hirsh Guest Star Sharif Atkins Guest Star Deezer D Nurse Malik McGrath Guest Star Yvette Freeman Nurse Haleh Adams Guest Star Lily Mariye Nurse Lily Jarvik Guest Star Conni Marie Brazelton Nurse Connie Oligario Guest Star Laura Cerón Nurse Chuny Marquez Guest Star Montae Russell Dwight Zadro Guest Star John Wells Executive Producer Michael Crichton Executive Producer Neal Baer Executive Producer Jack Orman Executive Producer