Stephen Root (Justified) and Marque Richardson (Dear White People) are the latest to join the cast of All The Way, HBO’s adaptation of the Tony-winning Robert Schenkkan play. Directed by Jay Roach and executive produced by Steven Spielberg, the film covers LBJ (Bryan Cranston) from the moment the assassination of John F. Kennedy made Johnson the 36th president of the United States, and through a turbulent first year that included leveraging his power to pass Civil Rights legislation in Congress, up to his landslide re-election victory.

Root will play J.Edgar Hoover  and Richardson plays civil rights activist Bob Moses. In the play, the role of Hoover was played by Michael McKean. (Cranston is reprising his Tony-winning role from the Broadway production.) They join previously announced Melissa Leo (Lady Bird Johnson) and Anthony Mackie (Martin Luther King Jr).

Schenkkan adapted his play for the screen. Spielberg, Schenkkan, Roach, Cranston, Darryl Frank and Justin Falvey are executive producing. Richardson is repped by Rebel Entertainment Partners and Lisa Wright of Elevate Entertainment.