‘The Batman: Part 2″ director Matt Reeves has been rolling out posts on X introducing a number of additions confirmed to be joining Robert Pattinson in the cast of the upcoming sequel. Among the now-confirmed new faces, Reeves announced that Scarlett Johansson has joined the film, posting a photo of her in the 2013 film “Under the Skin” and writing “Next exit, Gotham… Welcome.” Sebastian Stan will also be on board, with Reeves writing “In a Gotham state of mind… Welcome” for the “Thunderbolts*” star. “Game of Thrones” actor Charles Dance has been cast in the superhero pic along with Bryan Tyree Henry, who appeared in “Joker” and “Eternals.” Sebastian Koch, the German actor who appeared in “Homeland” and “A Good Day to Die Hard,” will also join the cast. Johansson’s involvement was first announced in December. Stan was first reported to be in talks in January , and is set to play Harvey Dent. Dance is believed to be playing Charles Dent, Harvey’s father.…