If you were on the Internet last night, there's a good chance you couldn't escape talk of Batman, even if you don't care about Batman at all.
Warner Bros.' announcement that Ben Affleck will be the latest big-screen incarnation of the Dark Knight in Zack Snyder's sequel to Man of Steel set off a Sharknado-level frenzy across the Web. Fans everywhere chimed in to applaud, bemoan or simply mock the news, the hashtag #Batfleck was coined, and countless new Batman/Affleck-centric memes were generated. It seemed like everyone on Twitter was in on the discussion, including many of our favorite genre-based celebrities from film, television, comics and beyond.
Check out the gallery below to see some of our favorite celebrity reactions to Affleck's casting, from TV stars who weren't wild about the choice, to comic-book creators who applauded it, to William Shatner volunteering himself for a supporting role in the movie.