Anthony Edwards Dr. Mark Greene 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 Ming-Na Wen Actor Sherry Stringfield Dr. Susan Lewis Actor Eriq La Salle Dr. Peter Benton Actor Christine Harnos Jennifer Simon Guest Star Paul Benjamin Al Ervin Guest Star Mekhi Phifer Dr. Gregory Pratt Guest Star Ken Lerner Stan Seidel Guest Star Blaire Baron Egyptologist Willa Goldman Guest Star Sharif Atkins Guest Star Lori Petty Shane Guest Star Laura Cerón Nurse Chuny Marquez Guest Star Yvette Freeman Nurse Haleh Adams Guest Star Anna Alvim Linda Cruz Guest Star Maz Jobrani Henry Aquino Guest Star John Wells Executive Producer Michael Crichton Executive Producer Neal Baer Executive Producer Jack Orman Executive Producer