Sinestro

Sinestro is a fictional character from DC Comics, originally a Green Lantern known for his strict adherence to order and justice using a powerful energy ring. Over time, he becomes a complex figure, occasionally turning to villainy, especially as the leader of the Sinestro Corps, which wields yellow energy associated with fear. He embodies themes of authority, moral ambiguity, and the thin line between order and tyranny. Sinestro's character explores how the desire for control and order can lead to both heroism and villainy, making him a compelling and morally nuanced figure within the cosmic Green Lantern universe.