Mr. O'Brien

Brad Pitt

Jack

Sean Penn

Mrs. O'Brien

Jessica Chastain

Grandmother

Fiona Shaw

Young Jack

Hunter McCracken

Messenger

Irene Bedard

R.L.

Laramie Eppler

Guide

Jessica Fuselier

Steve

Tye Sheridan

Mr. Reynolds

Nicolas Gonda

Architect

Will Wallace

Father Haynes

Kelly Koonce

Robert

Bryce Boudoin

Jimmy

Jimmy Donaldson*

Cayler

Kameron Vaughn

Harry Bates

Cole Cockburn

George Walsh

Dustin Allen

Jo Bates

Brayden Whisenhunt

Jack's Wife

Joanna Going

Jack, 2 years old

Finnegan Williams

Jack, 5 years old

Michael Koeth

R.L. at 2

John Howell

Samantha

Samantha Martinez

Mrs. Kimball

Savannah Welch

Mrs. Stone

Tamara Jolaine

Beth

Julia M. Smith

Rue

Anne Nabors

Prisoner

Christopher Ryan

Tyler Stone

Tyler Thomas

Prisoner

Ryan Melton

Mr. Brown

Michael Showers

Mrs. Brown

Kim Whalen

Jane

Margaret Ann Hoard

Mrs. Brown

Kimberly Whalen

Clergyman

Wally Welch

Jane

Margaret Hoard

Mr. Bagley

Hudson Long

Dusty Walsh

Michael Dixon

Mr. Bagley

Hudson Lee Long

Jack's Work Colleague

William Hardy

Tommy

Tommy Hollis

Robert #2

Cooper Franklin Sutherland

Bi-Plane Pilot

John Cyrier

Erma

Erma Lee Alexander

Nicholas Swimmer

Nicholas Yedinak

Organist Double

Claire Oelkers

Hand Double for Mr. Pitt

Thomas Pavlechko

Architect

William Wallace