Josh Hartnett as SSG Matthew Eversmann

Eric Bana as SFC Norm 'Hoot' Gibson

Ewan McGregor as SPC John Grimes

Tom Sizemore as LTC Danny McKnight

William Fichtner as SFC Jeff Sanderson

Sam Shepard as MG William F. Garrison

Jason Isaacs as CPT Mike Steele

Ewen Bremner as SPC Shawn Nelson

Orlando Bloom as PFC Todd Blackburn

Tom Hardy as SPC Lance Twombly

Charlie Hofheimer as CPL James 'Jamie' Smith

Hugh Dancy as SFC Kurt 'Doc' Schmid

Tom Guiry as SSG Ed Yurek

Brian Van Holt as SSG Jeff Struecker

Steven Ford as LTC Joe Cribbs

Ron Eldard as CWO Michael Durant

Gregory Sporleder as SGT Scott Galentine

Zeljko Ivanek as LTC Gary Harrell

Matthew Marsden as SPC Dale Sizemore

Nikolaj Coster-Waldau as MSG Gary Gordon

Johnny Strong as SFC Randy Shughart

Kim Coates as MSG Tim 'Griz' Martin

Jeremy Piven as CW4 Clifton 'Elvis' Wolcott

Enrique Murciano as SGT Lorenzo Ruiz

Glenn Morshower as LTC Tom Matthews

Brendan Sexton III as PFC Richard 'Alphabet' Kowalewski

Carmine Giovinazzo as SGT Mike Goodale

George Harris as Osman Ali Atto

Razaaq Adoti as Yousuf Dahir Mo'alim

Treva Etienne as Abdullahi 'Firimbi' Hassan

Jason Hildebrandt as CWO Dan Jollata

Ty Burrell as TSgt. Timothy Wilkinson

Boyd Kestner as Goffena

Ioan Gruffudd as LT John Beales

Richard Tyson as Daniel Busch

Corey Johnson as U.S. Medic

Gabriel Casseus as Kurth

Danny Hoch as Pilla

Tac Fitzgerald as Thomas

Kent Linville as Othic

Ian Virgo as Waddell

Chris Beetem as Joyce

Michael Roof as Maddox

Pavel Vokoun as Briley

Dan Woods as Fales

Johann Myers as Somali Father

Kofi Amankwah as Somali Kid

Lee Geohagen as Somali Son with Gun

Joshua Quarcoo as Somali Kid

Tommy Dallace as Iceman (uncredited)

Marcus Ashley as Jackson (uncredited)

Giannina Facio as Stephanie Shughart (uncredited)

Norman Campbell Rees as Ranger (uncredited)

Nikky Smedley as Stout Attendant (uncredited)

Gibson Rickenbacker as U.S. Soldier (uncredited)

Corey Johnson as U.S. Medic (uncredited)