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 Keith D. Robinson William White Guest Star Elizabeth Mitchell Dr. Kim Legaspi Guest Star Amy Aquino Dr. Janet Coburn Guest Star Troy Evans Frank Martin Guest Star Missy Yager Nicole Woodman Guest Star Laura Cerón Nurse Chuny Marquez Guest Star Deezer D Nurse Malik McGrath Guest Star Sonya Eddy Student Affairs Secretary Guest Star Megan Follows Christy Larkin Guest Star John Wells Executive Producer Michael Crichton Executive Producer Neal Baer Executive Producer Jack Orman Executive Producer