The Enchiridion!

"The Enchiridion!" is the fifth episode of the first season of the American animated television series Adventure Time. The episode was outlined, written, and storyboarded by Patrick McHale, Adam Muto, and Pendleton Ward. It originally aired on Cartoon Network on April 19, 2010. The episode guest stars Henry Rollins, John Moschitta, Jr, and Mark Hamill.