Timothy Bottoms as Joe Bonham

Kathy Fields as Kareen

Marsha Hunt as Joe's Mother

Jason Robards as Joe's Father

Donald Sutherland as Christ

Charles McGraw as Mike Burkeman

Sandy Brown Wyeth as Lucky

Don 'Red' Barry as Jody Simmons

Peter Brocco as Ancient Prelate

Kendell Clarke as Hospital Offical

Eric Christmas as Corporal Timlon

Eduard Franz as Col. / Gen. Tillery

Craig Bovia as Little Guy

Judy Howard Chaikin as Bakery Girl

Dalton Trumbo as Orator

Diane Varsi as Nurse #4

David Soul as Swede, World War I Soldier

Anthony Geary as Red, World War I Soldier

Maurice Dallimore as British Colonel

Robert Easton as Third Doctor

Larry Fleischman as Russ

Anthony Geary as Redhead

Ed Gilbert as Priest

Ben Hammer as Second Doctor

Milton Barnes as First Reader

Wayne Heffley as Captain

Lynn Hanratty as Elisabeth Age 6

Ernestine Johnston as Farm Woman

Joseph Kaufmann as Rudy

Mike Lee as Bill Harper

Kerry MacLane as Joe Age 10

William Mims as Gentleman

Byron Morrow as Brigadier General

Alice Nunn as Third Nurse

Marge Redmond as First Nurse

Jodean Lawrence as Second Nurse

Diane Varsi as Fourth Nurse

David Soul as Swede

Peter Virgo Jr. as Attendant

Gigi Vorgan as Catherine Age 13

Jeffrey Walker as Fifth Guy

Bruce Watson as Technician

Winston Churchill as Self - Opening Credits (archive footage) (uncredited)

Xus Estruch as (uncredited)

Ken Globus as Waiter (uncredited)

Bob Harks as Waiter (uncredited)

Monty O'Grady as Churchgoer (uncredited)

Margaret Pellegrini as (uncredited)

Philippe Pétain as Self - Opening Credits (archive footage) (uncredited)

Pepe Serna as Jose (uncredited)

Arthur Tovey as Churchgoer (uncredited)

Tom Tryon as (uncredited)

Czar Nicholas II of Russia as Self - Opening Credits (archive footage) (uncredited)

Tsarina Alexandra as Self - Opening Credits (archive footage) (uncredited)

Etienne Veazie as Black Youth (uncredited)

Cynthia Wilson as Catherine Age 7 (uncredited)

Woodrow Wilson as Self - Opening Credits (archive footage) (uncredited)

Jerry Zinneman as Dead Bavarian (uncredited)