Mirror Master
Mirror Master is a legacy name used by enemies of the Flash, appearing in comic books published by DC Comics. The character was created by John Broome and Carmine Infantino, first appearing in The Flash #105 (1959). The original was a criminal mastermind named Sam Scudder who developed advanced mirror technologies for his own use. His successor was a Scottish assassin named Evan McCulloch. They were both members of the Rogues Gallery, but the name has also been associated with the Injustice Gang and the Secret Society of Super Villains.
In other media
changeBoth incarnations of Mirror Master have made several appearances in DC-related media, with Sam Scudder being portrayed in live-action by David Cassidy in the 1990 The Flash series and by Grey Damon in the 2014 The Flash series, while Efrat Dor portrayed a gender-swapped version of Evan McCulloch, named Eva McCulloch, in the 2014 series.