Today, Deadline announced that Stephen Amell’s wife Cassandra Jean Amell has joined the upcoming Arrowverse crossover event as Nora Fries. Nora is the wife of Batman villain Mr. Freeze that is stuck in cryostasis as the villain tries to find a cure for her. However, interestingly enough Mr. Freeze will not be appearing in the upcoming crossover. The crossover will also feature the first appearance of Gotham in the Arrowverse along with its protector Batwoman played by Ruby Rose (John Wick 2, xXx).
The three-night event kicks off with The Flash at 8 PM on Sunday, December 9, followed by Arrow at 8 PM December 10 and capping off with Supergirl on December 11.