•
Christian Bale, as Capt. Joseph J. Blocker, a veteran of the
Indian Wars. •
Rosamund Pike, as Rosalee Quaid, a widow who joins Blocker's detail after the murder of her family by
Comanches. •
Wes Studi, as Chief Yellow Hawk, an imprisoned and sickly Cheyenne leader being taken home to die, and the father of Black Hawk and Living Woman. •
Jesse Plemons, as Lt. Rudy Kidder, a fresh West Point graduate, part of the detail to escort Yellow Hawk home. •
Adam Beach, as Black Hawk, Yellow Hawk's son and Elk Woman's husband. •
Rory Cochrane, as 1st Sgt. Thomas Metz, a Confederate veteran who is now in the United States Cavalry. He is war-weary and is among Blocker's oldest friends, part of the detail to escort Yellow Hawk home. •
Peter Mullan, as Lt. Col. Ross McCowan, the commander of Fort Winslow, Colorado. •
Scott Wilson, as Cyrus Lounde, the owner of Yellow Hawk's ancestral land.
Hostiles marks Wilson’s final film before his death in 2018. •
Paul Anderson, as Cpl. Tommy Thomas, a British-born soldier from Fort Winslow escorting Wills to his hanging. •
Timothée Chalamet, as Pvt. Philippe Dejardin, the youngest member of the detail to escort Yellow Hawk home. •
Ben Foster, as Sgt. Philip Wills, a criminal soldier whom Blocker is charged with escorting to his hanging. •
Jonathan Majors, as Cpl. Henry Woodson, a Black soldier who served under Blocker for many years, and part of the detail to escort Yellow Hawk home. •
John Benjamin Hickey as Cpt. Royce Tolan, Fort Berringer's resident military surgeon. •
Q'orianka Kilcher, as Elk Woman, Black Hawk's wife. •
Tanaya Beatty, as Living Woman, Yellow Hawk's daughter. •
Stephen Lang, as Col. Abraham Biggs, Blocker's commanding officer •
Bill Camp, as Jeremiah Wilks, a frontier correspondent for ''
Harper's Weekly''. •
Scott Shepherd, as Wesley Quaid, Rosalee's husband. •
Ryan Bingham, as Sgt. Malloy, a soldier from Fort Winslow escorting Wills to his hanging. •
Robyn Malcolm, as Minnie McCowan, Col. McCowan's wife. •
Luce Rains, as Virgil Lounde, one of the sons of Cyrus Lounde. == Production ==