Morgan Freeman as Col. Abraham Curtis

Thomas Jane as Dr. Henry Devlin

Jason Lee as Joe 'Beaver' Clarenden

Damian Lewis as Gary 'Jonesy' Jones

Timothy Olyphant as Pete Moore

Tom Sizemore as Lt. Owen Underhill

Donnie Wahlberg as Douglas 'Duddits' Cavell

Mikey Holekamp as Young Henry

Reece Thompson as Young Beaver

Giacomo Baessato as Young Jonesy

Joel Palmer as Young Pete

Andrew Robb as Young Duddits

Rosemary Dunsmore as Roberta Cavell

Michael O'Neill as General Matheson

Eric Keenleyside as Rick McCarthy

C. Ernst Harth as Barry Neiman

Michael Dobson as Stranger on Curb

Ty Olsson as Army Truck Driver

Michael Daingerfield as Conklin

Campbell Lane as Old Man Gosselin

Ingrid Kavelaars as Trish

Darrin Klimek as Maples

Bailee Reid as Rachel

Kevan Ohtsji as Tracking Technician

Marcy Goldberg as EMT #1

Dion Johnstone as EMT #2

Shauna Kain as Josie Rinkenhauer

Colin Lawrence as Edwards

Jordan Walker as Helicopter Sentry

Jonathan Kasdan as Defuniak

Carolyn Tweedle as Woman in Crowd

Susan Charest as Becky

T.J. Riley as Scottie

Ryan DeBoer as Duncan

Malik McCall as Platoon Leader

John Moore as Bad Driver

Christopher Ang as Apache Crewman #1

Chris Duggan as Apache Crewman #2

Daniel Merali as Apache Crewman #3

Matt Riley as Apache Crewman #4

John Armstrong as Detainee #1

Jack Crowston as Detainee #2

Trenna Frandsen as Detainee #3

John Gagné as Detainee #4

Sue Hartley as Detainee #5

John Hombach as Detainee #6

Kat Kosiancic as Detainee #7

Lance Kinsey as Hofferman (uncredited)

Victor Formosa as Man Outside Bar (uncredited)

Chad Rook as Soldier (uncredited)

Clarence Sponagle as Soldier (uncredited)