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.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.