Waco O'Guin is one of the 2 co-creators of Brickleberry, and he's
always pissed off the more verbally active of the two. He has co-written many of the show's episodes along with Roger Black. Because of how mature and intentionally offensive his art (and jokes) can get, even before Brickleberry, such as The Damn! Show, he has fought with people who demanded censoring, such as when Instagram pulled out "The Creation of Woody" from Brickleberry's Twitter account. Fox and Adult Swim did not make him happy when he pitched Brickleberry to them because they rejected his ideas. Waco has a passion for mocking hillbillies and hobos, which is how he ended up creating Bobby Possumcods, BoDean, Firecracker Jim and Hobo Larry.
The cancellation of Brickleberry was a serious issue for Waco, since no Season 4 meant he was out of work. Waco pressed hard for Season 4, such as by encouraging fans to buy the comic book in hopes of creating enough funds.
Ever since the show's ended, Waco's been lashing out at Comedy Central, and has said the channel isn't funny anymore. There's a hint that Waco enjoyed South Park at least for a while, since in the Brickleberry comic book's first issue, he wrote that Malloy liked this "one Comedy Central show" before Woody tells him it peaked before he was born.