CAST
75th Rangers
- Josh Hartnett as SSG Matt Eversmann, the leader of Chalk 4
- Ewan McGregor as SPC John "Grimesey" Grimes, a desk clerk
- Tom Sizemore as LTC Danny McKnight, the commander of the 3rd Ranger Battalion
- Ewen Bremner as SPC Shawn Nelson, a squad gunner
- Gabriel Casseus as SPC Mike Kurth
- Hugh Dancy as SFC Kurt "Doc" Schmid, a medic of Chalk 4 (portrayed as a Ranger in the film; was Delta Force in real life)
- Ioan Gruffudd as LT John Beales
- Tom Guiry as SSG Ed Yurek
- Charlie Hofheimer as CPL Jamie Smith
- Danny Hoch as SGT Dominick Pilla
- Jason Isaacs as CPT Mike Steele, commander, Bravo Company, 3rd Ranger Battalion
- Brendan Sexton III as PVT Richard "Alphabet" Kowalewski
- Brian Van Holt as SSG Jeff Struecker
- Ian Virgo as PVT John Waddell
- Tom Hardy as SPC Lance Twombly
- Gregory Sporleder as SGT Scott Galentine, the ground radio and telephone communications operator of Chalk 4
- Carmine Giovinazzo as SGT Mike Goodale
- Chris Beetem as SGT Casey Joyce
- Matthew Marsden as SPC Dale Sizemore
- Gideon Emery as PFC Favid Montes
- Orlando Bloom as PFC Todd Blackburn
- Enrique Murciano as SGT Lorenzo Ruiz
- Michael Roof as PVT John Maddox
- Tac Fitzgerald as SGT Keni Thomas
- Sam Shepard as MG William F. Garrison, commander of Task Force Ranger
- Eric Bana as SFC Norm "Hoot" Gibson (based on SFC John Macejunas, SFC Norm Hooten and SFC Matthew Rierson)
- William Fichtner as SFC Jeff Sanderson (based on SFC Paul Howe)[4]
- Kim Coates as MSG Chris Wex (based on MSG Tim "Griz" Martin)
- Steven Ford as LTC Joe Cribbs
- Željko Ivanek as LTC Gary Harrell, the commander of C Squadron
- Johnny Strong as SFC Randy Shughart, a sniper flying on Black Hawk Super Six-Two
- Nikolaj Coster-Waldau as MSG Gary Gordon, a sniper flying on Black Hawk Super Six-Two
- Richard Tyson as SSG Daniel Busch, a sniper flying on Black Hawk Super Six-One
- Ron Eldard as CW4 Michael Durant, the pilot of Super Six-Four
- Glenn Morshower as LTC Tom Matthews, the commander of 1st Battalion
- Jeremy Piven as CWO Clifton Wolcott, the pilot of Super Six-One, the first Black Hawk down
- Boyd Kestner as CW3 Mike Goffena, the pilot of Super Six-Two who inserts Gordon and Shughart
- George Harris as Osman Atto
- Razaaq Adoti as Yousuf Dahir Mo'alim, the Somali militia leader
- Treva Etienne as Firimbi, Somali war chief and Michael Durant's captor
- Ty Burrell as United States Air Force Pararescue Timothy A. Wilkinson.
MAIN CHARACTERS
Tom Sizemore as McKnight
William Fitcherson as Sanderson
Orlando Bloom as Todd Blackburn