Maligna is the matriarch of the Malignoids a vicious society of insect-like aliens who attempted to overtake the planet earth numerous times but was stopped by the Ninja Turtles and Mutanimals. She is also a nemesis of Krang. She appears in the Archie Comics. Her lieutenants were Scul & Bean.
She was killed in the conclusion of the "Terracide" storyline, where she perished along with Null in her hive ship as it crashed into the sun, Slash sacrificing himself to keep the two villains from escaping.
Maligna was planned to appear in the cancelled Mighty Mutanimals television show as one of the major villains.