Bryan Cranston Lyndon B. Johnson Anthony Mackie Martin Luther King, Jr. Melissa Leo Lady Bird Johnson Frank Langella Sen. Richard Russell Bradley Whitford Hubert Humphrey Stephen Root J. Edgar Hoover Todd Weeks Walter Jenkins Ray Wise Senator Everett Dirksen Ken Jenkins Howard W. Smith Dohn Norwood Ralph Abernathy Mo McRae Stokely Carmichael Marque Richardson Bob Moses Aisha Hinds Fannie Lou Hamer Joe Morton Roy Wilkins Tim True Deke Deloach Spencer Garrett Walter Reuther