Regular Show season 4

The fourth season of the American animated comedy television series Regular Show, created by J. G. Quintel, originally aired on Cartoon Network in the United States. Quintel created the series' pilot using characters from his comedy shorts for the canceled anthology series The Cartoonstitute. He developed Regular Show from his own experiences in college. Simultaneously, several of the show's main characters originated from his animated shorts 2 in the AM PM and The Naïve Man from Lolliland. Following its third season's success, Regular Show was renewed for a fourth season on October 26, 2011. The season ran from October 1, 2012 to August 12, 2013, and was produced by Cartoon Network Studios.

Regular Show's fourth season was storyboarded and written by Calvin Wong, Toby Jones, Andres Salaff, Madeline Queripel, Benton Connor, Hilary Florido, Sean Szeles, Kat Morris, Sarah Oleksyk, Hellen Jo, James Kim, and Owen Dennis. For this season, the writers were Quintel, Mike Roth, John Infantino, Michele Cavin, and Matt Price, who is also the story editor.

Concept
Two 23-year-old friends, a blue jay named Mordecai and a raccoon named Rigby, are employed as groundskeepers at a park and spend their days trying to slack off and entertain themselves by any means. This is much to the chagrin of their boss Benson and their coworker Skips, but the delight of Pops. Their other coworkers, Muscle Man (an overweight green man) and Hi-Five Ghost (a ghost with a hand extending from the top of his head) serve as their rivals.

Production
Many of the characters are loosely based on those developed for Quintel's student films at California Institute of the Arts: The Naive Man From Lolliland and 2 in the AM PM. Quintel pitched Regular Show for Cartoon Network's Cartoonstitute project, in which the network allowed artists to create pilots with no notes to be optioned as a show possibly. After The Cartoonstitute was scrapped, and Cartoon Network executives approved the greenlight for Regular Show, production officially began on August 14, 2009. After being green-lit, Quintel recruited several indie comic book artists to compose the show's staff, as their style matched close to what he desired for the series. The season was storyboarded and written by Calvin Wong, Toby Jones, Andres Salaff, Madeline Queripel, Benton Connor, Hilary Florido, Sean Szeles, Kat Morris, Sarah Oleksyk, Hellen Jo, James Kim, and Owen Dennis. The season was the last to feature contributions from Morris, who left to work on Steven Universe. For this season, the writers were Quintel, Mike Roth, John Infantino, Michele Cavin, and Matt Price, who is also the story editor while being produced by Cartoon Network Studios.

The fourth season of Regular Show was produced between September 2011 and September 2012. It utilizes double entendres and mild language; Quintel stated that, although the network wanted to step up from the more child-oriented fare, some restrictions came along with this switch.