Didn't know where exactly to post this, so I figured I'd make a general thread for the upcoming crossover just to make it easier for people to post updates in. But any way...
Kevin Conroy has been casted for the upcoming "Crisis" crossover as Bruce Wayne. The cast of Black Lighting is also confirmed to appear:
https://www.spoilertv.com/2019/08/th...-featured.html
So far the major guest characters we got confirmed are