Jake the Dog

Jake the Dog is the deuteragonist of the cartoon series Adventure Time, the tetaragonist of Steaks, the deuteragonist of Islands, and one of the two main protagonists of Elements. He's a magical dog and Finn's constant companion, best friend and adoptive brother. Jake has shape shifting abilities so he can "stretch" into different objects.

He was voiced by John DiMaggio, who also voiced as Fu Dog from American Dragon: Jake Long.