Tom Hanks as Captain Jefferson Kyle Kidd

Helena Zengel as Johanna Leonberger

Michael Angelo Covino as Almay

Ray McKinnon as Simon Boudlin

Mare Winningham as Doris Boudlin

Elizabeth Marvel as Mrs. Gannett

Fred Hechinger as John Calley

Bill Camp as Mr. Branholme

Thomas Francis Murphy as Mr. Farley

Gabriel Ebert as Benjamin Farley

Neil Sandilands as Wilhelm Leonberger

Winsome Brown as Anna Leonberger

Chukwudi Iwuji as Charles Edgefield

Christopher Hagen as Old Man Durand

Stafford Douglas as Dallas Federal Officer #1

Michelle Campbell as Female Townsfolk

Clint Obenchain as Tom Farley

J. Nathan Simmons as Citizen of Red River

Travis Johnson as Cavalry Rider

Andy Kastelic as Union Duty Officer

Jeffrey Ware as Red River Heckler

Chris Bylsma as Red River Heckler

Justin Tade as Red River Heckler

Darrin Giossi as Federal Soldier

Brenden Wedner as Young Progressive Speaker

Clay James as Almay's Man

Cash Lilley as Almay's Man

Jared Berry as Dallas Federal Soldier

Truman Hanks as German Rider

Michael Toby Sanchez as San Antonian

Shawn Howell as Durand Fight Townsperson

Alexander Alayon Jr. as Outlaw, Vaquero (uncredited)