R2D2 is famous for his distinctive whistles and chirps. It’s little wonder that he’s one of the most popular Star Wars characters of all time. And how he talks is part of what makes him so notable. He’s able to emote without saying anything. In the original script for Star Wars, he was supposed to talk just as much as C-3PO. And if that sounds unappealing, you can see it for yourself in some of the Marvel Star Wars comics that tied in with the movie.