In case its trailers hadn’t already made it clear, The Flash has a lot of cameos. The Andy Muschietti-directed blockbuster is an ambitious sci-fi superhero story that’s filled to the brim with references to not only the DC Extended Universe’s past films but also several of Warner Bros.’ legacy DC titles. The Flash, in other words, finds plenty of opportunities to bring back past DC actors — sometimes through, frankly, unsavory means — and tie them into its grand, multiversal story.
