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 James Cromwell Bishop Stewart Guest Star Yvette Freeman Nurse Haleh Adams Guest Star Laura Cerón Nurse Chuny Marquez Guest Star Deezer D Nurse Malik McGrath Guest Star Lily Mariye Nurse Lily Jarvik Guest Star Kristin Minter Randi Fronczak Guest Star Stacy Haiduk Impaled Mom Guest Star Michael McGrady Guest Star Jeffrey Dean Morgan Firefighter Larkin Guest Star Harry E. Northup Competency Evaluator Guest Star John Wells Executive Producer Michael Crichton Executive Producer Neal Baer Executive Producer Jack Orman Executive Producer