Stannis Baratheon — Josh Brolin
A seasoned veteran on the battlefield, Stannis Baratheon is a stern leader who attempts to take the throne after his brother, Robert, is killed. Although he is lauded as a fierce war commander, Stannis lacks charisma and is an unpleasant man. Josh Brolin has no problem being the “bad guy.” Brolin’s skill in villainy is put on display as Thanos in the Avengers movies, as well as portraying the main antagonist in True Grit.