Jerome and Jeremiah Valeska

Jerome and Jeremiah Valeska are characters and antagonists in the Fox superhero crime drama television series Gotham and associated media. They are identical twin brothers portrayed by Cameron Monaghan. Each twin adapts different characteristics of the DC Comics supervillain the Joker. Jerome is depicted as a psychotic nihilist who spreads chaos in Gotham City until his eventual death, while Jeremiah is a cunning psychopath obsessed with tormenting Bruce Wayne.