In an alternate reality, the Titanians were a civilization of sentient humanoid lifeforms, originating on homeworld Titan, a moon of the planet Saturn in the Sol star system. In this reality, the Titanians possessed a natural ability of powerful telepathy.
By this reality's 30th century, the Titanians were allied with the United Planets. Notable Titanians include Imra Ardeen-Ranzz, who was sponsored into the Legion of Super-Heroes to use her abilities for the good of the galaxy. (TOS - Legion of Super-Heroes comic: "Issue 1")