Ulla Paske
Little Mermaid's first appearance was in the Super Friends series. She was created by longtime fan Nick Pascale who also designed her costume. Her secret identity 'Ulla Paske' as given to her by editor E. Neslon Bridwell in honor of her creator. Ulla is a teenage hero born to a merman from Tritionis who had legs and a woman from Posideonis who had a fish tail, in Atlantis. Little Mermaid had the ability to turn her legs into fish fins, and breathe underwater for up to thirty hours. She also had the ability to fly. She was a member of the Global Guardians, her first mission (in Super Friends #9) was to help Aquaman dismantle a bomb in Atlantis. Later on, she helps Aquaman defeat Sinestro. She helps Superman find an ancient city that had sunk beneath the ocean. There, she assists in fighting supernatural creatures. Later, she helps Superman and other Guardians battle a large group of evil wizards on Easter Island.
Little Mermaid's first appearance in the canonical DC Universe, with the other members of the Global Guardians, was in DC Comics Presents #46 (June 1982). She later took part in helping the Atlantean heroes in the Crisis on Infinite Earths cross-over.
Post Crisis, Little Mermaid and the Guardians appeared in the pages of Justice League International and Justice League Europe. She was one of many Global Guardians brainwashed by the Queen Bee of Bialya.
Little Mermaid's final fate is not clear. She was apparently killed by Jack O'Lantern in Justice League Europe #30 (September 1991. This was not intentional as Jack was shooting at members of the Justice League. She reappears in Justice League Europe #50 (May 1993), claiming that the deceased Little Mermaid was her "evil twin." Finally, a memorial to the fallen Global Guardians, including one dedicated to the memory of Little Mermaid, appears in Justice League Quarterly #17 (Winter 1994).
Read more about this topic: Little Mermaid (comics), Fictional Character Biography