King Pig (or King Smoothcheeks) is one of the many pigs from the mobile videogame, 'Angry Birds'. Like most pigs within the franchise, he has green skin, a wall eyed stare, and a toothy grin whenever he smiles or laughs.

In King Pigs design, he is often shown to be bigger than other pigs due to either being fat or having large proportions. Due to his large size, he has the most health points compared to other pigs. He also wears a Gold crown with blue jewels which show that he is the monarch of Pig Island.

Since his debut in the franchise, King Pig was set as the main antagonist, being the final boss for most episodes. Originally, King Pig was meant to have an obsession with the eggs, being the culprit of most events that have to do with stealing eggs from birds. His main goal is to finally eat an egg though his motives remains ambiguous (Most interperetations show that he is motivated by hunger).