Christian Bale
Captain Joseph J. Blocker

Rosamund Pike
Rosalee Quaid

Wes Studi
Chief Yellow Hawk

Jesse Plemons
Lieutenant Rudy Kidder

Adam Beach
Black Hawk

Rory Cochrane
Master Sergeant Thomas Metz

Peter Mullan
Lieutenant Colonel Ross McCowan

Scott Wilson
Cyrus Lounde

Paul Anderson
Corporal Tommy Thomas

Timothée Chalamet
Private Philippe DeJardin

Ben Foster
Philip Wills

Jonathan Majors
Corporal Henry Woodson

John Benjamin Hickey
Captain Royce Tolan

Q'orianka Kilcher
Elk Woman

Tanaya Beatty
Living Woman

Bill Camp
Jeremiah Wilks

Scott Shepherd
Wesley Quaid

Ryan Bingham
Sergeant Paul Malloy

Robyn Malcolm
Minnie McCowan

David Midthunder
Buffalo Man

Stafford Douglas
Corporal Molinor

Stephen Lang
Colonel Abraham Biggs

Austin Rising
Fort Winslow Lance Corporal

Scott G. Anderson
Muny (Buffalo Hunter)

Boots Southerland
Outlaw (Buffalo Hunter)

Dicky Eklund Jr.
Hatchet Face (Buffalo Hunter)

Brian Duffy
Silas Lounde

Luce Rains
Virgil Lounde

James Cady
Train Conductor

Christopher Hagen
Sutler (uncredited)