Jaakko Iisalo

Jaakko Iisalo is a Finnish video game designer and developer. He is one of the lead people in the making of Angry Birds, Angry Birds Seasons, Bad Piggies, and other Rovio games. He is the chief designer of Rovio and was the leader of the making of Angry Birds. He was the person who sketched the birds used in Angry Birds. He also sketched the Pigs.