Aladdin is the main protagonist in the 1992 Disney animated film 'Aladdin.' He is a clever and resourceful young man who begins as a 'diamond in the rough' street rat in the city of Agrabah. Aladdin discovers a magical lamp and befriends the Genie, which leads him on an adventure to win the heart of Princess Jasmine and thwart the evil plans of Jafar. Aladdin is known for his bravery, wit, and big heart, serving as a symbol of hope and transformation in the series.