Gleen was a native of Krolotea, and was feared throughout his sector for his tampering with evolutionary patterns. He was part of a group of Krolotean gremlins that was responsible for Hector Hammond's telepathy, the Shark's rage, and initiated the experimentation on Black Hand.

He was most feared among the Kroloteans, and was recruited to be the representative of the Sinestro Corps in Sector 312. He helped free his leader Sinestro in an ambush, and managed to kill the Green Lantern Arx, but Alpha Lantern Varix killed him directly after.






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Sinestro Corps member
This character is or was a member of the Sinestro Corps, chosen by Sinestro to counteract the Green Lantern Corps and spread terror throughout their sector with a Power Ring.

This template will categorize articles that include it into the "Sinestro Corps members category."

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Green Lantern Villain(s)
This character is or was primarily an enemy of the Green Lantern of Earth, or the Green Lantern Corps as a whole. This template will categorize articles that include it into the category "Green Lantern Villains."
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