Question: "The Enchiridion!" is the fifth episode of the first season of a tv series created by who?
Context: "The Serpent's Egg" is the fifth episode of the first season of the American science fiction series "Defiance", and the series' fifth episode overall.  It was aired on May 13, 2013.  The episode was written by David Weddle & Bradley Thompson and it was directed by Omar Madha. "Let's Be Bad" is an original song introduced in the fifth episode of the first season of the musical TV series Smash, entitled "Let's Be Bad".  It was written by Marc Shaiman and Scott Wittman, but within the show's universe, it was written by the songwriting team Tom Levitt (Christian Borle) and Julia Houston (Debra Messing) for the "Bombshell" musical they are working on about Marilyn Monroe. "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. "Blind Spot" is the fifth episode of the first season of the psychological thriller TV series "Homeland".  It originally aired on Showtime on October 30, 2011. "You're Undead to Me" is the fifth episode of the first season of The CW television series, "The Vampire Diaries" and the fifth episode of the series overall.  It originally aired on October 8, 2009.  The episode was written by Sean Reycraft and Gabrielle Stanton and directed by Kevin Bray. "Come In, Stranger" is the fifth episode of the ABC television series, "Desperate Housewives".  The episode was the fifth episode for the show's first season.  The episode was written by Alexandra Cunningham and was directed by Arlene Sanford.  It originally aired on October 31, 2004. "Basketball" is the fifth episode of the first season of the American comedy television series "The Office", and the show's fifth episode overall.  The episode aired on NBC in the United States on April 19, 2005.  The episode was written and directed by producer Greg Daniels, marking both his first solo writing credit and first directing credit for the series.  This episode also marks the first appearance of comedian Patrice O'Neal. Rayman: The Animated Series (also known as Rayman: The TV Series, or just Rayman) is a series of animated shorts created by Ubisoft in 1999, based on the "Rayman" adventure game series, following the success of "".  It was meant to be a 26-episode series, but only four were completed when it was cancelled mid-series, leaving a fifth episode near to completion.  The series was only broadcast in France, Germany and the Netherlands, but was released on VHS in North America, and later on DVD in France. XIII: The Series is an English-language Franco-Canadian TV series that premiered in April 2011 in France and Canada.  Loosely based on the Belgian graphic novel series created by Jean Van Hamme and William Vance debuting in 1984, about an amnesiac protagonist who seeks to discover his concealed past.  The TV series follows the events of the 2008 TV film "", which was also produced by Prodigy Pictures and Cipango.  The first season follows the plot in parallel with the existing volumes in the comic series, while the second season diverts into an all-new original story arc. 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.  The season was produced by Cartoon Network Studios and Frederator Studios.  The series is based on a short produced for Frederator's Nicktoons Network animation incubator series "Random!  Cartoons".  The season follows the adventures of Finn, a human boy, and his best friend and adoptive brother Jake, a dog with magical powers to change shape and size at will.  Finn and Jake live in the post-apocalyptic Land of Ooo, where they interact with the other main characters of the show: Princess Bubblegum, The Ice King, Marceline the Vampire Queen, Lumpy Space Princess, and BMO.
Answer: Pendleton Ward