The CW’s big Arrowverse crossover event this December is bringing in Gotham City, Batwoman, Mr. Freeze’s wife Nora, and now another staple in the Batman world — Arkham Asylum.

The Hollywood Reporter says that actor Jeremy Davies has been cast as John Deegan, a doctor at Arkham Asylum for the criminally insane in Gotham City, who might just be crazier than the inmates he treats. He will be the main villain that forces Green Arrow, The Flash, and Supergirl to come over to Gotham. Superman and Lois Lane will also be part of the big crossover event.

The big Arrowverse crossover event kicks off on Sunday, December 9th with The Flash, followed by Arrow on December 10th, and will conclude on December 11th with Supergirl.

SOURCE: The Hollywood Reporter

Thanks to Batman News reader Gary for the heads up!