A closer look at “How HBO's Lanterns Reimagines John Stewart: Key Changes From the Comics”, exactly as the source publishes it. HBO's Lanterns brings John Stewart to live action for the first time, but the Green Lantern seen on screen is not a direct copy of his comic book counterpart. The series, starring Aaron Pierre as Stewart, reworks his origin, personality, and relationships to fit a grounded, prestige TV tone. In the comics, John is a former Marine and architect known for his stoic discipline and occasional guilt over past failures.
Lanterns keeps his military background but ages him down and makes him a younger, more impulsive rookie partnered with veteran Hal Jordan, played by Kyle Chandler. The show also shifts his dynamic with Hal from peer respect to a mentor-student tension, and it introduces a new Earth-based mystery rather than a cosmic threat. For the complete material, the listing points back to the source inside the network.