Woody Harrelson
Lyndon B. Johnson

Michael Stahl-David
Robert F. Kennedy

Richard Jenkins
Sen. Richard Russell

Jennifer Jason Leigh
Lady Bird Johnson

Jeffrey Donovan
John F. Kennedy

Bill Pullman
Ralph Yarborough

Brian Stepanek
Rufus Youngblood

Tim Ransom
Larry O'Brien

C. Thomas Howell
Walter Jenkins

Doug McKeon
Hubert H. Humphrey

Rich Sommer
Pierre Salinger

Gary Grubbs
Everett Dirksen

John Burke
John Connally

Kim Allen
Jacqueline Kennedy

Brent Bailey
Ted Sorensen

Joe Chrest
McGeorge Bundy

Judd Lormand
Robert McNamara

Dan Hewitt Owens
Abe Fortas

John Ellison Conlee
George Reedy

Michael Mosley
Kenny O’Donnell

Darrel Guilbeau
Jack Valenti

Aaron Mitchell
Senator / Police Officer (uncredited)