Man-Bat (Dr. Robert Kirkland "Kirk" Langstrom) is a fictional character appearing in American comic books published by DC Comics. Introduced in Detective Comics #400 (June 1970) as an enemy of the superhero Batman, the character belongs to the collective of adversaries that make up his rogues gallery. Originally portrayed as a supervillain, later incarnations show the Man-Bat as a sympathetic villain or antihero.
In the original version of the story, Kirk Langstrom was a zoologist who tried to give humans a bat's acute sonar sense. He managed to develop an extract that could supposedly do this. Upon testing it on himself, he transformed into an anthropomorphic feral half-bat hybrid, lacking sapience and acting purely on instinct. Batman managed to reverse the effects, but Langstrom would return as the Man-Bat time and time again, albeit not necessarily as a villain, as Langstrom would sometimes retain enough sanity to use his powers for good. Several other characters have since appeared as similar Man-Bat creatures, including Langstrom's wife Francine, his father Abraham Langstrom, and some League of Assassins operatives that make up the Man-Bat Commandos.
