In the aftermath of Cassius Clay's defeat of Sonny Liston in 1964, the boxer meets with Malcolm X, Sam Cooke and Jim Brown to change the course of history in the segregated South.
Kingsley Ben-Adir Malcolm X
Eli Goree Cassius Clay
Aldis Hodge Jim Brown
Leslie Odom Jr. Sam Cooke
Joaquina Kalukango Betty X
Nicolette Robinson Barbara Cooke
Michael Imperioli Angelo Dundee
Lawrence Gilliard Jr. Bundini Brown
Christian Magby Jamaal
Jeremy Pope Jackie Wilson
Christopher Gorham Johnny Carson
Beau Bridges Mr. Carlton
Lance Reddick Brother Kareem
Derek Roberts Jerome X
Emily Bridges Emily Carlton
Amondre D. Jackson L.C. Cooke
Jerome A. Wilson Elijah Muhammad
Hunter Burke Jess Rand
Robert Stevens Wayne Jules Podell
Randall Newsome Myron Cohen
Matt Fowler Ronnie
Chris Game Ferdie Pacheco
Alan Wells Ed McMahon
Dustin Lewis Miami Announcer
John Curran Wembley Announcer #1
Mark Allan Stewart Wembley Announcer #2
Amar Khalil Bobby
Ian Alexander Desdune II Michael
Jeremy Anderson Lamont 3X
Pierce Lackey Reporter 1
Dave Pileggi Reporter 2
Ashley LeConte Campbell Karen
Kimberly B Brown Geraldine Liston
Nola Epps Attallah Shabazz
Kipori Woods Cliff White
Joshua Nylan Tanner Boston Ballroom Announcer
Sean Monaghan Henry 'The Hammer' Cooper
Aaron D. Alexander Sonny Liston
Jason Ament Miami Referee
Nathan Siebring Wembley Referee
Kevin Reid Cameraman
Cody Johnson Tristen
Rachael Knaps Boxing Match Attendee (uncredited)