Ren & Stimpy is an American animated television series created by Canadian animator John Kricfalusi. The show first aired on Nickelodeon on August11,1991, as part of the Nicktoons block, alongside Rugrats and Doug. Ren Höek, an emotionally unstable chihuahua, and Stimpson J. Cat, a good-natured, dimwitted cat, are the series' titular characters. On the network, the show aired for five seasons. During and after its run, the show received critical acclaim and a cult following, and some critics credit it with paving the way for satirical animated shows such as Beavis and Butthead and South Park, as well as playing a significant role in television animation. The Ren & Stimpy Show was controversial throughout its run due to its off-color humor, sexual innuendo, and violence, all of which contributed to the production team's clashes with Nickelodeon's Standards and Practices department. Ren & Stimpy's "Adult Party Cartoon" aired on Spike in 2003 but was quickly cancelled.