LOS ANGELES, April 19 -- The Gotham City skyline is about to get a whole lot more dramatic. 

A major casting surge for The Batman: Part II has brought three powerhouse actors into the fold, setting the stage for a deeply personal and tragic family saga within the gritty world of Matt Reeves' blockbuster franchise.

While Robert Pattinson remains the headliner as the Dark Knight, the latest reports reveal that the sequel is assembling an extraordinary ensemble, with Sebastian Stan and Scarlett Johansson joining the cast, while Charles Dance is reportedly in talks for a pivotal role.

The most significant addition to the cast is Sebastian Stan, best known for his decade-long role as Bucky Barnes, the Winter Soldier, in the Marvel Cine...