Reese Witherspoon as Pam Hobbs

Colin Firth as Ron Lax

Alessandro Nivola as Terry Hobbs

James Hamrick as Damien Echols

Seth Meriwether as Jason Baldwin

Kristopher Higgins as Jessie Misskelley

Amy Ryan as Margaret Lax

Kevin Durand as John Mark Byers

Bruce Greenwood as Judge David Burnett

Stephen Moyer as John Fogelman

Elias Koteas as Jerry Driver

Martin Henderson as Brent Davis

Rex Linn as Chief Inspector Gitchell

Collette Wolfe as Glori Shettles

Dane DeHaan as Chris Morgan

Mireille Enos as Vicki Hutcherson

Haley Craft as Teenage Employee

Julie Ivey as Melissa Byers

Kate Kneeland as Ron's Secretary

Kerry Cahill as Jo Lynn

Bill Murphey as Marty King

Lindsey Moser as Teacher at Weaver

Kristoffer Polaha as Val Price

Matt Letscher as Paul Ford

Michael Gladis as Dan Stidham

Ted Huckabee as Steve Jones

Jet Jurgensmeyer as Stevie Branch

Brandon Spink as Chris Byers

Jack Coghlan as Aaron Hutcheson

Lori Beth Sikes as Annie

Gary Grubbs as Dale Griffis

Stan Houston as Detective Donald Bray

Matthew Stanton as Detective Durham

Brian Howe as Detective McDonough

Brooke Jaye Taylor as Officer Regina Meeks