Monsters vs. Aliens is an American animated television series based on the 2009 DreamWorks Animation film Monsters vs. Aliens. First announced in 2009, the series premiered on Nickelodeon on March 23, 2013, after the Nickelodeon Kids' Choice Awards, then began airing in its regular timeslot on April 6, 2013. A total of 26 episodes consisting of 50 segments were released, with the last episode airing on February 8, 2014. It was the third and final Nicktoon produced by DreamWorks Animation after ' and The Penguins of Madagascar. Following this, the series was not renewed for a second season. Later DreamWorks Animation shows would eventually be produced for Netflix, Hulu, and Peacock, starting with Turbo Fast.
Six months after the events of the film, Susan/Ginormica, B.O.B., Link and Dr. Cockroach learn to adapt to a new world as they work alongside a bizarre group of aliens at Area Fifty-Something, a secret underground base.
In 2009, DreamWorks Animation CEO Jeffrey Katzenberg announced that Nickelodeon had ordered a pilot for a Monsters vs. Aliens cartoon series. Eventually, the series was announced at the 2012 annual Nickelodeon upfront, being green-lit for 26 episodes. The cast features new voice actors for the characters of Dr. Cockroach (Chris O'Dowd), Ginormica (Riki Lindhome), Link (Diedrich Bader), and B.O.B. (Eric Edelstein). The series was partly produced by New Zealand CG animation studio Oktobor Animation, similar to the other DreamWorks-based series The Penguins of Madagascar and '. The executive producers of Monsters vs. Aliens (Bob Schooley, Mark McCorkle, and Brett Haaland) all previously worked on Penguins.
In November 2013, executive producer Bob Schooley announced on Twitter that Monsters vs. Aliens would not be renewed for a second season due to low ratings and the network's desire to "get back to the more Nickish shows". Later DreamWorks Animation shows would eventually be produced for Netflix, Hulu, and Peacock, starting with Turbo Fast.
Despite the show being distributed by Viacom Media Networks (a division of Paramount Skydance), all the DVDs were distributed solely by 20th Century Fox Home Entertainment (as the show was also distributed by 20th Century Fox Television). The first two titles were later re-released by Universal Pictures Home Entertainment after NBCUniversal bought DreamWorks Animation in 2016.