Firefly (Gotham)

Bridgit Pike is a pyromaniac in Gotham City, who acts as a recurring antagonist in the television series Gotham. She is initially an abused member of the Pike family, who later embraces her darker side after being caught on fire and later experimented in by Hugo Strange at Indian Hill, causing her to turn into the psychotic fire loving criminal Firefly. She often acted as a henchgirl to The Penguin, and later began working for Jeremiah Valeska as part of his Legion of Horribles, a team consisting of Gotham's most notorious super-criminals.

Trivia

 * This is the first Firefly to be depicted as female. Bridgit Pike was later carried over to the mainstream comic books, first appearing in Detective Comics in September 2018, in which she appeared as Lady Firefly.