- Omar J. Dorsey - James Orange
- LaKeith Stanfield - Jimmie Lee Jackson
- Tessa Thompson - Diane Nash
- Cuba Gooding Jr. - Fred Gray
- Ruben Santiago-Hudson - Bayard Rustin
- Kent Faulcon - Sullivan Jackson
- Lorraine Toussaint - Amelia Boynton
- Alessandro Nivola - John Doar
- David Dwyer - Chief Wilson Baker
- E. Roger Mitchell - Frederick Reese
- Dylan Baker - J. Edgar Hoover
- Ledisi - Mahalia Jackson
- Niecy Nash-Betts - Richie Jean Jackson
- Corey Reynolds - Rev. C.T. Vivian
- Wendell Pierce - Rev. Hosea Williams
- Charity Jordan - Viola Lee Jackson
- Nigel Thatch - Malcolm X
- Trai Byers - James Forman
- Stan Houston - Sheriff Jim Clark
- Jeremy Strong - James Reeb
- Tara Ochs - Viola Liuzzo
- Stephen Root - Col. Al Lingo
- Greg Maness - Aide
- Haviland Stillwell - President's Secretary
- Charles Black - Elder Marcher
- Jody Thompson - White Marcher
- Henry G. Sanders - Cager Lee
- Montrel Miller - Young Marcher
- Jim France - Gunnar Jahn
- Michael Papajohn - Major Cloud
- John Lavelle - Roy Reed
- Stormy Merriwether - Jackson's Daughter
- Martin Sheen - Frank Minis Johnson (uncredited)
- Martin Luther King Jr. - Self (archive footage) (uncredited)
- Harry Belafonte - Self (archive footage) (uncredited)
- Tony Bennett - Self (archive footage) (uncredited)
- Sammy Davis Jr. - Self (archive footage) (uncredited)
-
Ava DuVernay
- Paul Webb
- Ava DuVernay
- Brad Pitt
- Paul Goodwin Garnes
- Aisha Coley
- Jeremy Kleiner
- Dede Gardner
- Diarmuid McKeown
- Greg Hedgepath
- Bill R. Dean
- Matthias Gohl
Capítulo disponible en las siguientes plataformas: