Aaron Pierre officially joins the DCU as Green Lantern John Stewart in HBO's upcoming series, Lanterns. Confirmed by DC Studios' James Gunn, this major casting news marks a pivotal moment for the Green Lantern Corps. The series will follow John Stewart and Hal Jordan as they investigate a dark mystery in the American heartland. Kyle Chandler is also in talks to play Hal Jordan. With seasoned talents like Chris Mundy and Damon Lindelof behind the scenes, Lanterns is shaping up to be a must-watch.