Jeremiah Valeska

Jeremiah Valeska, also known as Xander Wilde, is the main antagonist (alongside Oswald Cobblepot) during the second half of the fourth season on the TV series Gotham. He is Jerome Valeska's twin brother and is the show's version of The Joker.

He is portrayed by Cameron Monaghan, who also portrayed Jerome Valeska.

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