Ratcatcher (comics)

Ratcatcher is name of two fictional supervillains appearing in American comic books and other media published by DC Comics. He is an enemy of Batman. He is a rat-catcher in Gotham City and known as Otis Flannegan. He called himself the Ratcatcher because of his special powers to talk with and train rats.
Ratcatcher first appeared in "Detective Comics" #585 (April 1988) and was created by Alan Grant, John Wagner, and Norm Breyfogle.
A second and female version of the character, named Cleo Cazo / Ratcatcher 2 and shown as the daughter of the original Ratcatcher, will make her cinematic debut in the DC Extended Universe movie "The Suicide Squad" (2021), portrayed by Daniela Melchior.