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 Sally Field Maggie Wyczenski Guest Star Don Cheadle Paul Nathan Guest Star Tom Everett Scott Eric Wyczenski Guest Star Laura Cerón Guest Star Deezer D Nurse Malik McGrath Guest Star Troy Evans Frank Martin Guest Star Lily Mariye Nurse Lily Jarvik Guest Star Kristin Minter Randi Fronczak Guest Star Jim Fitzpatrick Lt. Col. McGreun Guest Star Larry Hankin Bearded Homeless Guy Guest Star John Wells Executive Producer Michael Crichton Executive Producer Neal Baer Executive Producer Jack Orman Executive Producer