David Oyelowo (Dr. Martin Luther King, Jr.), Tom Wilkinson (Präsident Lyndon B. Johnson), Carmen Ejogo (Coretta Scott King), Giovanni Ribisi (Lee C. White), Cuba Gooding jr. (Fred Gray), Tim Roth (Gouverneur George Wallace), Oprah Winfrey (Annie Lee Cooper), Jim France (Gunnar Jahn), André Holland (Andrew Young), Stephan James (John Lewis), Lorraine Toussaint (Amelia Boynton), Clay Chappell (Registrar), Haviland Stillwell (Sekretärin des Präsidenten), Wendell Pierce (Reverend Hosea Williams), Common (James Bevel), Tessa Thompson (Diane Nash), Ruben Santiago-Hudson (Bayard Rustin), Henry G. Sanders (Cager Lee), LaKeith Stanfield (Jimmie Lee Jackson), Kent Faulcon (Sullivan Jackson), Martin Sheen (Richter Frank Minis Johnson), Dylan Baker (J. Edgar Hoover), Niecy Nash (Richie Jean Jackson), Corey Reynolds (Reverevend C.T. Vivian), David Dwyer (Chief Wilson Baker), Colman Domingo (Ralph Abernathy), Alessandro Nivola (John Doar), Omar J. Dorsey (James Orange), E. Roger Mitchell (Frederick Reese), Trai Byers (James Forman), Stormy Merriwether (Jacksons Tochter), Stan Houston (Sheriff Jim Clark), John Lavelle (Roy Reed), Ledisi Anibade Young (Mahalia Jackson), Charity Jordan (Viola Lee Jackson)