Robert Oswald

James Badge Dale

Dr. Charles "Jim" Carrico

Zac Efron

Nurse Doris Nelson

Marcia Gay Harden

Abraham Zapruder

Paul Giamatti

President Kennedy

Brett Stimely

Forrest Sorrels

Billy Bob Thornton

Marguerite Oswald

Jacki Weaver

Lee Harvey Oswald

Jeremy Strong

James Hosty

Ron Livingston

Roy Kellerman

Tom Welling

Father Oscar Huber

Jackie Earle Haley

Dr. Malcom Perry

Colin Hanks

Dr. Paul Mikkelson

Matt Barr

Emergency Room Nurse

Mallory Move

Gordon Shanklin

David Harbour

Marilyn Sitzman

Bitsie Tulloch

Harry McCormick

Paul Sparks

Ken Howe

Jason Douglas

Kenneth O'Donnell

Mark Duplass

Earl Rose

Rory Cochrane

Acme Brick Supervisor

Larry Jack Dotson

Emory Roberts

Austin Nichols

Winston Lawson

Jonathan Breck

David Powers

Gil Bellows

Orderly

Eugene Lee

Rufus Youngblood

Nico Evers-Swindell

Marilyn Sitzman

Elizabeth Tulloch

Lillian Zapruder

Dana Wheeler-Nicholson

Hospital Switchboard Operator #1

Irene White

Jacqueline Kennedy

Kat Steffens

Hospital Switchboard Operator #2

Luci Christian

Lyndon B. Johnson

Sean McGraw

Reverend Saunders

Jimmie Dale Gilmore

Dr. Kemp Clark

Gary Grubbs

Malcolm Kilduff

Bryan Batt

Mike Howard

Glenn Morshower

Hugh Jamieson

Chuck Huber

Trauma Resident

Samuel Davis

Admiral George Burkley

Gary Clarke

Emergency Room Nurse

Mallory Moye

Trauma Doctor

Arthur Simone

Secret Service Agent

Matthew Tompkins

Dallas Morning News Lab Tech

Chamblee Ferguson

Acme Brick Timekeeper

Ellen Halper

Chamberlain

Chris Freihofer

Nurse

Taylor Joree Scorse

Lem Johns

Rob Gallavan

Nurse

Taylor Scorse

FBI Agent

John Taylor Phillips

Texas Ranger

Oryan Landa

Funeral Director

Robert Catrini

Secret Service Agent (uncredited)

Heath Allyn

Marina Oswald (uncredited)

Sarah Joy Byington

Secret Service Agent (uncredited)

John Cann

Secret Service Agent (uncredited)

Anthony J. Caruso

Theron Ward

Richard Dillard

Gen. Godfrey McHugh (uncredited)

Darryl Cox

Sgt. Bob Dugger

Richard Jackson

Acme Brick Employee (uncredited)

Nathaniel Holt

Dallas Police Officer - Glen McBride (uncredited)

Armando Gutiérrez

Col. James Swindal

Drew Waters

Dallas Police Detective

Walter Orr Roberts

ER Nurse (uncredited)

Anne Lockhart

Doctor in Trauma Room (uncredited)

Greg Wise

Richard Stolley

Jeffrey Schmidt

Kodak Lab Technician (uncredited)

Jeff Gibbs

Dallas Police Detective

Walt Roberts

Dr. Ronald Jones (uncredited)

William Akey

Nellie Connally (uncredited)

Peggy Schott