Jim Caviezel as Pvt. Robert Witt

Ben Chaplin as Pvt. Jack Bell

Dash Mihok as Pfc. Don Doll

Woody Harrelson as Sgt. William Keck

Nick Nolte as Lt. Col. Gordon Tall

Sean Penn as 1st Sgt. Edward Welsh

John Cusack as Capt. John Gaff

Adrien Brody as Cpl. Geoffrey Fife

John Travolta as Brig. Gen. David Quintard

Jared Leto as 2nd Lt. William Whyte

George Clooney as Capt. Charles Bosche

Elias Koteas as Capt. James Staros

John C. Reilly as Sgt. Maynard Storm

John Dee Smith as Pvt. Edward Train

Kirk Acevedo as Pvt. Alfredo Tella

Mark Boone Junior as Pvt. Christopher Peale

Matt Doran as Pvt. Howard Coombs

Paul Gleeson as 1st Lt. George "Brass" Band

Don Harvey as Sgt. Paul Becker

Arie Verveen as Pfc. Charlie Dale

Thomas Jane as Pvt. Ash

Donal Logue as Marl (uncredited)

John Savage as Sgt. Jack McCron

Nick Stahl as Pfc. Edward Bead

Miranda Otto as Marty Bell

Tim Blake Nelson as Pvt. Brian Tills

Larry Romano as Pvt. Frank Mazzi

Penelope Allen as Witt's Mother

Danny Hoch as Pvt. Leonardo Carni

Benjamin Green as Melanesian Villager

Simon Billig as Lt. Col. Billig

Jarrod Dean as Cpl. Thorne

Travis Fine as Pvt. Weld

David Harrod as Cpl. Queen

Don Harvey as Sgt. Becker

Michael McGrady as Pvt. Floyd

Stephen Spacek as Cpl. Jenks

Steven Vidler as 2nd Lt. Gore

Will Wallace as Pvt. Hoke

Todd Wallace as Pilot

Simon Westaway as First Scout

Dan Wyllie as Medic #1

Randall Craig as Navy Gunner (uncredited)

Kick Gurry as (uncredited)

Randall Duk Kim as Nisei Interpreter (uncredited)

Darrin Klimek as (uncredited)

Dane Moreton as Pvt. Alexander (uncredited)

Ray Samuelson as Navy Soldier (uncredited)

Justin Ward as Navy Soldier (uncredited)

Felix Williamson as Private Drake (uncredited)

Norman Patrick Brown as Pvt. Henry

Sam Arnold as Sgt Mitchell (uncredited)