Irma Vep is a legendary, shape-shifting villainess character originating from Louis Feuillade’s 1915 silent French crime serial Les Vampires. Played by Musidora, Irma is a seductive, manipulative, and highly intelligent leader within a criminal underworld. Known for her iconic black catsuit and skill as a mistress of disguise, she is a master thief who leads a criminal gang. The name is an anagram for "vampire".