Donald is one of the most famous of all Disney characters who isn't a mouse. Constantly the #2 he is an attention seeker who is clumsy and not always the nicest person.
Donald can be found in pretty much all Disney Parks in some capacity, and even has his own universe expanded through two Ducktales TV series.
Be sure to be on the lookout for him on your next Disney visit. But be prepared for him to try and steal the spotlight.