Highly-regarded comedic actors Neil Patrick Harris (How I Met Your Mother) and Donald Glover (Community) will be featured in a special episode of Cartoon Network’s hit animated series Adventure Time, the network announced. The episode, entitled “Bad Little Boy,” is slated to air in early 2013 as part of the hit series’ upcoming fifth season. Season five of Adventure Time will premiere with a two-part episode Monday, November 12 at 7:30 p.m. (ET/PT) on Cartoon Network.

Reprising his role as Prince Gumball from season three’s much-loved gender switch episode “Adventure Time with Fionna and Cake,” Neil Patrick Harris will join Donald Glover, as Marshall Lee, the musical male counterpart to fan favorite Marceline the Vampire Queen in this special, second installment of the Fionna and Cake (derived from Finn and Jake) saga. Also on deck this season; the return of the possibly redeemed Flame Princess, an episode from renowned Irish animator David O'Reilly and the arrival of Jake and Lady Ranicorn’s pups.

Recently nominated for its third Primetime Emmy Award for “Outstanding Short-format Animated Program” as well as a prestigious BAFTA (British Academy of Film and Television Arts) Award, Adventure Time has become a genuine ratings and pop culture phenomenon since its April 2010 debut.  Season four of the series has ranked #1 in its time period with all key kid and boy demos. Guest stars have included Matthew Broderick, George Takei, Donald Faison, Erik Estrada, Andy Milonakis, Emo Phillips, Bobcat Goldthwait and Susie Essman.

Fans of Adventure Time can also take home a little piece of the show's magic with the all-new Adventure Time: Jake vs. Me-Mow DVD. Currently in-stores the DVD features 16 episodes from the series' first four seasons plus a special gift, Finn's iconic bear-hat! Also, on November 19 CartoonNetwork.com unveils its biggest Adventure Time game to date; “Finn and Jake’s Epic Quest!” The Land of Ooo has been turned into a giant 3D video game and Finn and Jake need your help in their most epic quest ever.

Adventure Time introduces viewers to unlikely heroes Finn and Jake, buddies who traverse the mystical Land of Ooo and encounter its colorful inhabitants. The best of friends, our heroes always find themselves in the middle of heart-pounding escapades. Finn, a silly kid with an awesome hat and Jake, a brassy dog with a big kind heart, depend on each other through thick and thin. From the mind of first-time series creator Pendleton Ward and Cartoon Network Studios, Ooo is a land built for adventure.

Source: Cartoon Network