The Muppets are back in theaters today with overwhelmingly positive reviews for their newest movie, but what were they doing during the 12 years since their last film? At The National Post, cartoonist Steve Murray (a.k.a. Chip Zdarsky) imagines some alternate roles the Muppets might have taken on during their hiatus, including Animal as a Heath Ledgerian Joker and Beaker as Ghost Rider. Check out the full image here.