King Leonard Mudbeard, also known simply as Leonard or King Mudbeard, is the main antagonist of the 2016 computer-animated film The Angry Birds Movie and the tritagonist of its 2019 sequel The Angry Birds Movie 2.
He is a greedy and oppressive tyrant and the king of the dimwitted Bad Piggies, as well as the father of King Pig. His goal is to rob the Bird Island birds of their eggs, bring them to his kingdom on Piggy Island, and have them cooked up for a feast for himself and his fellow pigs. In the first film, he is Red, Chuck, and Bomb's arch-nemesis. In the second film, however, he reforms considerably and becomes their friend.