'Clayface' Officially Sets Up Another Iconic Batman Villain in the DC Universe

Clayface is filled with some very noticible Easter eggs about the Joker Back in the summer of 2025, Clayface was filming in Liverpool. Photos from the set revealed a reference to another, far more famous Batman villain. One featured a wall with graffiti on it, and among the different tags was one that read “The Jokers.” That led to some speculation about Joker’s presence in the DC Universe’s Gotham.