Robert Downey Jr. as Hank Palmer

Robert Duvall as Joseph Palmer

Vera Farmiga as Samantha Powell

Vincent D'Onofrio as Glen Palmer

Jeremy Strong as Dale Palmer

Dax Shepard as C.P. Kennedy

Billy Bob Thornton as Dwight Dickham

Leighton Meester as Carla Powell

Ken Howard as Judge Warren

Emma Tremblay as Lauren Palmer

Balthazar Getty as Deputy Hanson

David Krumholtz as Mike Kattan

Grace Zabriskie as Mrs. Blackwell

Denis O'Hare as Doc Morris

Sarah Lancaster as Lisa Palmer

Lonnie Farmer as Gus the Bailiff

Matt Riedy as Sheriff White

Mark Kiely as Mark Blackwell

Jeremy Holm as Redneck

Catherine Cummings as Mary Palmer

Tamara Hickey as Amy Palmer

Paul-Emile Cendron as Joe Palmer

Ian Nelson as Eric Palmer

Carol S. Austin as Young Mary Palmer

Marcus D'Angelo as Dale (10)

Michael Celata as Hank (5)

Bobby Bryan as Hank (16)

Cody Pettola as Glen (5)

Johnny Orlando as Glen (17)

Gary Wayne Farris as Judge (39)

Ras Enoch McCurdie as Mini Mart Clerk

Ian Blackman as Mr. Burke

John Talalas as Chicago Sheriff Deputy

Daryl Edwards as Judge Carter

Joel Brady as Mr. Williams

Sara Jane Burns as Pregnant Ex

Ara Glenn-Johanson as Potential Juror #5

Kate Crowley as Potential Juror #9

Peter Michael McDonald as Juror #3

Michael Patrick Kane as Juror #7

Lance Norris as Juror #8

Lenny Clarke as Juror #10

Frank Ridley as Jury Foreman

Duncan B. Putney as Dr. Putney

Pun Bandhu as Forensic Scientist

Jamison Haase as Dr. Brannamon

Lucien Spelman as Bartender Billy

Timothy John Smith as Both Ways Bobby

Jonathan Ziese as Blackwell's Brother

Brian McGrail as Townie

Joyce Greenleaf as Mourner

Enn Reitel as Mourner

Tiffany Crosby as Airport Pedestrian

Mary Hronicek as Courtroom Spectator

Susan Garfield as Flight Attendant