Adventure Time is an American animated television series created by Pendleton Ward for Cartoon Network. The series follows the adventures of a boy named Finn and his best friend and adoptive brother Jake —a dog with the magical power to change shape and size at will. Finn and Jake live in the post-apocalyptic Land of Ooo. Throughout the show, they interact with the other main characters Princess Bubblegum , The Ice King , and Marceline the Vampire Queen. The series is based on a short produced for Nicktoons and Frederator Studios' animation incubator series Random! Cartoons. After the short became a viral hit on the Internet, Cartoon Network commissioned a full-length series that previewed on March 11, 2010, and officially premiered on April 5, 2010.