Titan Girl
Titan Girl is a name associated with two characters who have appeared in the Legion of Superheroes. They both have been telepaths from the moon of Saturn, Titan.
Titan Girl of the 853rd century
The first person to go by the alias of Titan Girl was a psionic projection created by the sleeping inhabitants of Titan, which in the 853rd century was a nursing home for telepaths. There, the elderly are hooked into a sophisticated telepathic network which CREATES the appearance of heaven. Titan Girl herself is the manifestation of the Titanian people. While appearing to be a heroic member of the Justice Legion L (the legion of Superheroes), Titan Girl actually uses her telepathic and telekinetic powers to sabotage attempts to re-unite the United Planets. It is revealed that the people of Titan have built an engine to propel their moon further out into space and separate from the United Planets. Titan Girl (being a projection of the will of the Titanians) was carrying out the plans of her people. When the people of Titan awake from their slumber, they disconnect from the telepathic network, which causes Titan Girl to cease to exist.
Jeyra Entinn
A new Titan Girl appears in the pages of Supergirl and the Legion of Super-Heroes. Jeyra Entinn is a woman from Titan, where the people have, over the centuries, lost the use of vocal cords due to only communicating telepathically. It was later revealed that she is a member of the Wanderers, a covert mercenary team of metahumans created by the Earthgov. The Wanderers have worked together with the Legion of Super-Heroes to battle the Dominators. When the public got to know that the planet Dominion had been blown up on the demand of Cosmic Boy (although the truth was that it was sent to the Phantom Zone), Brainiac 5 manipulated data from Vrax Gozzl so that they would suggest that it was Mekt Ranzz's idea to implode the Dominator homeworld, and that Jeyra then planted the thought in Cosmic Boy's mind. When Mekt Ranzz was arrested, Jeyra and the other Wanderers disappeared.