Mel Gibson as Lt. Col. Hal Moore

Madeleine Stowe as Julie Moore

Greg Kinnear as Maj. Bruce 'Snake' Crandall

Sam Elliott as Sgt. Maj. Basil Plumley

Chris Klein as 2nd Lt. Jack Geoghegan

Keri Russell as Barbara Geoghegan

Barry Pepper as Joe Galloway

Duong Don as Lt. Col. Nguyen Huu An

Ryan Hurst as Sgt. Ernie Savage

Robert Bagnell as 1st Lt. Charlie Hastings

Marc Blucas as 2nd Lt. Henry Herrick

Josh Daugherty as Sp4 Robert Ouellette

Jsu Garcia as Capt. Tony Nadal

Jon Hamm as Capt. Matt Dillon

Clark Gregg as Capt. Tom Metsker

Desmond Harrington as Sp4 Bill Beck

Blake Heron as Sp4 Galen Bungum

Erik MacArthur as Sp4 Russell Adams

Dylan Walsh as Capt. Robert Edwards

Mark McCracken as Capt. Ed 'Too Tall' Freeman

Edwin EdVanzd as Pfc. Willie Godboldt

Brian Tee as Pfc. Jimmy Nakayama

Sloane Momsen as Cecile Moore

Bellamy Young as Catherine Metsker

Simbi Khali as Alma Givens

Jim Grimshaw as Maj. Gen. Henry Kinnard

Forry Smith as Sfc. Carl Palmer

Steven Nelson as Sp5 Charlie 'Doc' Lose

Vincent Angell as Capt. Robert 'Doc' Carrera

Michael Tomlinson as Col. Tim Brown

Keith Szarabajka as Diplomatic Spook

Tim Abell as Army Intelligence Officer

Patrick St. Esprit as General in Hallway

Mike White as Sfc. Bob White, Mortar Sergeant

Daniel Roebuck as Medevac CO

Maia Lien as Army Wife

Dan Beene as Cab Driver

Taylor Momsen as Daughter Julie Moore

Joshua McLaurin as Greg Moore

Devon Werkheiser as Steve Moore

Luke Benward as David Moore

Billinjer C. Tran as Viet Minh Sergeant

Vien Hong as Mr. Nik

Joseph Tran as NVA Prisoner

Joseph Hieu as NVA Officer

Lam Nguyen as NVA Soldier with Bayonet

Diep Bui as NVA Wife

Andrew Wallace as French Bugler

Nicholas Hosking as French Captain

Michael Giordani as French Lieutenant

Shepard Koster as Reporter

Kate Lombardi as Reporter

Ingrid Semler as Reporter

Jason Powell as Sgt. Robert Stokes

Doug C. Cook as Capt. Ray Lefebvre

Sean Bunch as Trooper on Fire

F. Lee Reynolds as Chopper Crewman

Stephen Zapotoczny as Edwards' Radio Operator

Frank Kostenko Jr. as Foxhole Trooper

Ben Allison as Lt. Cochran (uncredited)

Brian Carpenter as Sec. of Defense Robert McNamara (uncredited)

Chris Cate as Soldier (uncredited)

George Cheung as NVA Officer (uncredited)

Greg Craft as Soldier (uncredited)

Donald DeNoyer as Soldier (uncredited)

Cliff Fleming as Capt. Jon Mills (uncredited)

Brendan Ford as Jump Coordinator (uncredited)

Kelli Franklin as Mrs. Charlie Hastings (uncredited)

Christian Gibson as Soldier (uncredited)

William Gibson as Soldier (uncredited)

Anthony Gilbert as Soldier (uncredited)

Justin Gordon as French Officer (uncredited)

Shannon M. Hart as Army Wife (uncredited)

Kimby Jagnandan as Spectator (uncredited)

Lyndon B. Johnson as Self (archive footage) (uncredited)

Derrell Keith Lester as Black Private (uncredited)

Will Klipstine as Private Davey (uncredited)

Matthew Lang as 1st Lt. John Arrington (uncredited)

Danny Le Boyer as Sergeant (uncredited)

Blake Lena as Soldier (uncredited)

Matt Mangum as Pvt. Soprano (uncredited)

Johnny Nguyen as Young NVA Lieutenant (uncredited)

Randy Oglesby as Lt. Col. List (uncredited)

Jonathan Parks Jordan as White Private (uncredited)

John Paul Rice as Pvt. John Henry (uncredited)

Keni Thomas as Sergeant (uncredited)

Phong Atwood Vo as North Vietnamese Soldier - South Vietnamese and Villager (voice) (uncredited)