Charlize Theron character Aileen Wuornos
Christina Ricci character Selby Wall
Bruce Dern character Thomas
Lee Tergesen character Vincent Corey
Annie Corley character Donna
Pruitt Taylor Vince character Gene / Stuttering "John"
Marco St. John character Evan / Undercover "John"
Marc Macaulay character Will / Daddy "John"
Scott Wilson character Horton / Last "John"
Rus Blackwell character Cop
Tim Ware character Chuck
Stephan Jones character Lawyer
Brett Rice character Charles
Kaitlin Riley character Teenage Aileen
Cree Ivey character 7-Year-Old Aileen
Catherine Mangan character Justy
Magdalena Manville character Bar Lap Girl
T. Robert Pigott character Bartender
Romonda Shaver character Employment Agent
Glenn R. Wilder character Restaurant Manager
Elaine Stebbins character Wife at Accident
Kane Hodder character Undercover Cop
Christian Stokes character Undercover Cop
Lyllian Barcaski character Bar Girl
Nonalee Davis character Bar Girl
Bubba Baker character Cubby
Al character Himself
Cannonball character Himself
Chad Vaccarino character Trevor
Gene R. Stephenson character Judge
Jesse Stern character Skate Rink Attendant
Billy Boylan character Police Chief
Jim R. Coleman character Newscaster
Chandra Leigh character Cute Teenage Attendant
Lori McDonald character Attendant
Adam Brown character Attendant
Ed Donovan character State Prison Guard (uncredited)
