"The Enchiridion!" is the fifth episode of the first season of a tv series created by who?
The Enchiridion!:  is the fifth episode of the first season of the American animated television series "Adventure Time". Adventure Time (season 1): The first season of "Adventure Time", an American animated television series created by Pendleton Ward, premiered on Cartoon Network on April 5, 2010 and concluded on September 27, 2010.
Pendleton Ward