According to Morena Baccarin, Cameron Monaghan will play another character on the show. Sounds like it could be a relative!
Spoilers for the second half of Gotham Season 4. There are few Gotham characters fans like to see more than Cameron Monaghan's Jerome Valeska, who's the closest this series has come yet to the iconic Batman villain the Joker. Jerome was locked up in Arkham when he last appeared, after being resurrected from the dead and having to sew his face back into place after a supporter sliced it off. Not only is Jerome returning in Season 4, but Cameron Monaghan is playing another character on Gotham too, according to co-star Morena Baccarin. Bustle reached out to Fox for confirmation, but had not received a response by the time of publication.
"Cameron Monaghans coming back," says actor, who plays Lee Thompkins, speaking to Bustle at a Gotham screening at Tumblr's New York office. "Hes never really left us. Hes got some incredible scenes." Those scenes will probably include Oswald, since the Penguin was carted off to Arkham in the midseason finale and may wind up as Jerome's cellmate. But Baccarin also revealed that Jerome will have another ally one that looks remarkably like him. This is huge news, because, frankly, the cycle of killing and reviving Jerome is starting to get ridiculous, so it's good to know if he winds up being written off of the show for good, there will still be a chance to keep Monaghan around.
The actor didn't specify the name of Monaghan's new Gotham character, but indicated that he's a member of Jerome's own family. Since Jerome had a pretty terrible childhood that led him to become what he is today, it's likely that this relative won't have had a much sunnier experience growing up. According to Baccarin, this character is also "psychotic" and together, the two will be "leading Gotham to revolt."
https://www.bustle.com/p/cameron-mon...ccarin-8363612
Could this possible relative/doppelgänger be the man who becomes The Joker?