Gridface Princess is a minor character in the Cartoon Network animated series Adventure Time. She is a princess from the Gridface Kingdom, a land of people with grid-like faces. Gridface Princess is a mysterious and powerful character, and she is often seen as a threat to the Land of Ooo. Gridface Princess first appeared in the episode What is Life?. She was summoned by the Ice King to help him find the secret to life. Gridface Princess was able to provide the Ice King with some answers, but she also warned him that the secret to life was dangerous. A fanart Adventure Time cursor with Gridface Princess.