Susan Sarandon (Sister Helen Prejean)
Sean Penn (Mathew Poncelet)
Robert Prosky (Hilton Barber)
Raymond J. Barry (Earl Delacroix)
R. Lee Ermey (Clyde Percy)
Larry Pine (Guy Gilardi)
Sally Ann Roberts (Reporter #2)
Lois Smith (Helen's Mother)
Scott Wilson (Chaplain Farley)
Adele Robbins (Nurse)
Jack Black (Craig Poncelet)
Pamela Garmon (Mirabeau)
Scott Sowers (Guard #2)
Peter Sarsgaard (Walter Delacroix)
Adam Nelson (Guard #4)
Cortez Nance, Jr. (Guard #3)
Lenore Banks (Parent #4)
Nesbitt Blaisdell (Warden Hartman)
Steve Boles (Sgt. Neal Trapp)
Clancy Brown (State Trooper)
Steve Carlisle (Helen's Brother)
Kevin Cooney (Governor Benedict)
Michael Cullen (Carl Vitello)
Alec Gifford (Reporter #3)
Barton Heyman (Captain Beliveau)
Amy Long (Opossum Kid #3)
Mike Longman (News Anchor)
Margo Martindale (Sister Colleen)
Roberta Maxwell (Lucille Poncelet)
Ray Aranha (Luis Montoya)
Celia Weston (Mary Beth Percy)