Frozen broke the billion-dollar mark at the global box office and has become an absolute juggernaut for the House of Mouse. People still wait in massive lines to meet Anna and Elsa and the Disney theme parks. While Josh Gad may be recording his first lines of Frozen 2, he's never been that far away from the role of Olaf, as all the Frozen characters have been huge parts of things like video games and theme park attractions, so they've been back to record frequently. In addition to being insanely popular, Frozen was also critically applauded for the way in which it played with the tropes of the genre that Disney helped to create in the first place.