*Katma Tui is a member of the Green Lanterns, who appeared in the episode "The Green Loontern".

She is voiced by Tara Strong.

In the episode "The Green Loontern", Katma Tui was fighting an army of Sinestro's robots who were kidnapping members of the Corps and transporting them to his headquarters. She and the remaining members, Kilowog and Ch'p, got help from Duck Dodgers, who got his hands on Hal Jordan's Green Lantern uniform and power ring after a mix up at the cleaners. She had an idea to make a Trojan lantern, using a refurbished damaged robot for someone to fly straight into Sinestro's fortress, power down its force field and allow others entrance.*