Hal Jordan is a character created by John Broome and Gil Kane. He is a member of the Green Lantern Corps, and thus, he wields a Green Lantern ring, which gives him flight and the ability to create green energy constructs. He can recharge his ring by chanting out:
"In brightest day, in blackest night,
No evil shall escape my sight.
Let those who worship evil's might
Beware my power, GREEN LANTERN'S LIGHT!"
His arch-nemesis is Sinestro .
