Nyström, Luke Pearson, Lyle Partridge, Kris Mukai, Graham Falk, and Kent Osborne. The season was storyboarded and written by Tom Herpich, Steve Wolfhard, Seo Kim, Somvilay Xayaphone, Jesse Moynihan, Adam Muto, Ako Castuera, Sam Alden, Kirsten Lepore, Andres Salaff, Hanna K. Finn and Jake live in the post-apocalyptic Land of Ooo, where they interact with the show's other main characters: Princess Bubblegum, The Ice King, Marceline the Vampire Queen, Lumpy Space Princess, BMO, and Flame Princess. It follows the adventures of Finn, a human boy, and his best friend and adoptive brother Jake, a dog with magical powers to change shape and size at will. The season was produced by Cartoon Network Studios and Frederator Studios. The seventh season of Adventure Time, an American animated television series created by Pendleton Ward, premiered on Cartoon Network on November 2, 2015, and concluded on March 19, 2016.