Characters played by Charlize Theron
Libby Day
Characters played by Sterling Jerins
Young Libby Day
Characters played by Nicholas Hoult
Lyle Wirth
Characters played by Christina Hendricks
Patty Day
Characters played by Corey Stoll
Ben Day
Characters played by Tye Sheridan
Young Ben Day
Characters played by Andrea Roth
Diondra
Characters played by Chloë Grace Moretz
Young Diondra
Characters played by Sean Bridgers
Runner Day
Characters played by J. LaRose
Trey Teepano
Characters played by Shannon Kook
Young Trey Teepano
Characters played by Jennifer Pierce Mathus
Diane
Characters played by Natalie Precht
Michelle Day
Characters played by Madison McGuire
Debby Day
Characters played by Lori Z. Cordova
Magda
Characters played by Denise Williamson
Crystal
Characters played by Jeff Chase
Calvin Diehl
Characters played by Drea de Matteo
Krissi Cates
Characters played by Addy Miller
Young Krissi Cates
Characters played by Laura Cayouette
Krissi Cates' Mother
Characters played by Richard Gunn
Lou Cates
Characters played by Michael Crabtree
Joseph
Characters played by Glenn Morshower
Jim Jeffreys
Characters played by John F. Daniel
Bob Berdella
Characters played by Steve Shearer
Bert Nolan
Characters played by Carl Palmer
Detective
Characters played by Arthur Simone
Frederick Baker Look-Alike
Characters played by P.J. Marshall
Child Psychiatrist
Characters played by James Moses Black
Kill Club Solver
Characters played by Mary Kim Sipes
Kill Club Solver
Characters played by Dan Hewitt Owens
Robert
Characters played by Tyler Forrest
Warehouse Guitarist
Characters played by Dora Madison
Warehouse Girl
Characters played by Vanessa Amaya
Manson Girl
Characters played by Brianna Beasley
Brunette Girl
Characters played by Lawrence P. Beron
Mr. Gruber
Characters played by Tim Childress
Birthday Party Parent
Characters played by John C. Coffman
Steakhouse Patron
Characters played by Terrie Cooklin
Academic Investigator
Characters played by Cody Daniel
Mike Allen
Characters played by Sheri Davis
Bar Patron
Characters played by Clay Dove
Prisoner
Characters played by Tavaris James Durell
Night Club Patron
Characters played by Sarah Eilts
Manson Girl
Characters played by Ricky French
Homeless Man
Characters played by Michael P Gardner
Andrei Chikatilo
Characters played by Barry Hanley
Prison Guard
Characters played by Kriz Chris Henri Harriz
Academic
Characters played by Michelle Harvey
The Black Dahlia
Characters played by Kerrigan Hightower
Party Goer
Student
Characters played by Russell Hightower
Student
Characters played by Michael C Hollandsworth
Policeman
Characters played by Samantha Howes
Kill Club Member
Characters played by Roni Hummel
Academics
Characters played by Heather Rene Hutson
Party patron
Characters played by Steve Jimenez
Charles Manson Look-a-Like
Characters played by Sione Ma'umalanga
Officer
Characters played by Michael McCormick
Kill Club Punk Goth
Characters played by Eric Kelly McFarland
Partygoer
Characters played by Anna Medley
Kill Club Goer
Characters played by Kelly D. Mills
Kill Club Questioner
Characters played by Azure Parsons
(uncredited)
Characters played by James Paul
Attorney
Characters played by Bruce Penton
Homeless Cook
Characters played by Cody Pottkotter
Ian Brady
Characters played by Delmaine Samuel
Prison Inmate
Characters played by Alice Searcy
Bar Patron
Characters played by Anne Speed
Book Club Member
Characters played by Gregory Alexander Wight
Death Row Inmate
Characters played by Johnny Young
Kill Club Goer
Characters played by Eric Zettina
Kill Club Goer