Adventure Time (originally titled Adventure Time with Finn and Jake) is an American animated television series created by Pendleton Ward forCartoon Network. The series follows the adventures of Finn (voiced by Jeremy Shada), a human boy, and his best friend and adoptive brother Jake(voiced by John DiMaggio), a dog with magical powers to change shape and grow and shrink at will. Finn and Jake live in the post-apocalyptic Land of Ooo. Along the way, they interact with the other main characters of the show: Princess Bubblegum (voiced by Hynden Walch), The Ice King(voiced by Tom Kenny), and Marceline the Vampire Queen (voiced by Olivia Olson). The series is based on a short produced for Nicktoons andFrederator Studios' animation incubator series Random! Cartoons. After the short became a viral hit on the Internet, Cartoon Network picked it up for a full-length series that previewed on March 11, 2010, and officially premiered on April 5, 2010.