Kilowog (Earth-5261)

"You're all just rookies right now. Rookies who have all been chosen to serve, protect, and obey. You've been recruited like others have for millennia because you all have the potential ta overcome fear. After I'm finished with ya, some of you might do just that... and some of ya might be able to learn how to use those power rings. Some of you might even get to be one of the seventy two hundred who will protect the universe as agents of the Guardians of the Universe. Yep, some of you might become members of the Green Lantern Corps. Then again, some of you might not. Any questions?"

- - Kilowog to his trainees

Kilowog is the lead trainer of the Green Lantern Corps, responsible for instructing new Lanterns in how to use the Power Rings. An exceptional warrior with a short-temper, he is the best friend of fellow Lantern John Stewart.