#Thaal Sinestro

Thaal Sinestro is a prominent supervillain in the DC Comics universe, primarily known as the archenemy of the Green Lantern Corps. Originally a respected Green Lantern from the planet Korugar, he was exiled for his authoritarian methods and subsequently founded the Sinestro Corps, wielding the yellow energy of fear. He first appeared in Green Lantern #7 in 1961.