In this episode, Finn has an ominous dream about the Lich, and sets off with Jake to warn Billy. 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.
The episode guest starred Lou Ferrigno as Billy, and Ron Perlman as the Lich.
It originally aired on Cartoon Network on October 22, 2012. The episode was written and storyboarded by Tom Herpich and Skyler Page, from a story by Patrick McHale, Kent Osborne, Pendleton Ward. ' The Lich' is the twenty-sixth episode and season finale of the fourth season of the American animated television series Adventure Time.
