Saturn Girl (Imra Ardeen) is a superheroine appearing in comics published by DC Comics. A talented telepath from the 30th century, Saturn Girl is a founding member of the Legion of Super-Heroes. Imra's "Saturn Girl" title refers to her homeworld of Titan, Saturn's largest moon. There have been three versions of Imra since her original debut, separated by the events of both the Zero Hour and Infinite Crisis limited series. Saturn Girl made her live-action debut in an episode of Smallville, and she is portrayed by actress/singer Alexz Johnson. Imra Ardeen appeared in the third season of Supergirl set in the DC Arrowverse, portrayed by Amy Jackson. In this version she is from the future and was Mon-El's wife and part of the Legion of Superheroes. Publication history Saturn Girl first appeared in Adventure Comics #247 (April 1958) and was created by Otto Binder and Al Plastino. Fictional character biography Silver Age During the Silver Age of comics, 30th century Earth is a member of the United Planets and home to its military branch, the Science Police. The most talented telepath among a race of powerful mentalists, Imra left her homeworld of Titan to join the Science Police as a teenager. However, during her flight to Earth, an assassination attempt was made on the life of fellow passenger and billionaire R.J. Brande. Using her powers of telepathy, Imra discovered the plot, and, with the help of two other teenagers on board, Lightning Lad and Cosmic Boy, caught the assassin and saved Brande's life. At Brande's urging, she adopted the persona of Saturn Girl, and joined Lightning Lad and Cosmic Boy in founding the Legion of Super-Heroes - an organization of teenage heroes formed to honor the legacy of Superboy. They traveled back to the 20th century and gave him a place on the team after he passed their tests. When Lex Luthor and the Legion of Super-Villains were about to kill Superman, Saturn Girl offered to die in his place, although a trick by Superman made Saturn Queen save her. As a Legionnaire, Imra gained a reputation for self-sacrifice; just prior to the leadership elections of 2975, she learned that a Legionnaire would die during an attack on Earth and decided to take on that responsibility herself. Using her telepathy, Imra forced the other Legionnaires to vote her leader and then ordered them not to use their powers during the