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 Sally Field Maggie Wyczenski Guest Star Lisa Nicole Carson Carla Simmons Guest Star Emmett Shoemaker Ben Fossen Guest Star Julie Osburn Bonnie Vogel Guest Star Kristin Minter Randi Fronczak Guest Star Liane Curtis Mrs. Shayotovich Guest Star Erica Gimpel Adele Newman Guest Star Jack Hallett Jimmy Vogel Guest Star Elizabeth Mitchell Dr. Kim Legaspi Guest Star Michelle Bonilla Christine Harms Guest Star John Wells Executive Producer Michael Crichton Executive Producer Neal Baer Executive Producer Jack Orman Executive Producer