Mr Bean. Popular around the world and dialogue free, so no localisation costs. He’s probably been seen more than any other single character as it’s so easy for anyone to understand what’s going on. Certainly a contender for most watched, but maybe not most played, as there’s not as many episodes as many long running series, so you can watch every episode in a single day, rather than the weeks it would take to plod through the whole of The Simpsons.