Stimpy plays as Harry Dunne in Dumb and Dumber (StimpyandMabelRockz Style), Dumb and Dumber: The Animated Series (StimpyandMabelRockz Style), Dumb and Dumberer: When Stimpy Met Ren and Dumb and Dumber To (StimpyandMabelRockz Style)
Stimpy plays as Cogsworth in Beauty and the Hyena
- Billy West said in an interview that he did not wish to voice Stimpy in the Adult Party Cartoon because he believed that the series was not funny and that voicing Stimpy in it would damage his career. Thus, Eric Bauza was chosen to voice Stimpy.
- Wray described Stimpy as his favorite character to draw. Wray said that Stimpy does not have "a huge range of emotion."
- According to Billy West, Stimpy is the favorite character he has ever voiced.
- John K. had Billy West do a Larry Fine impression for Stimpy as he wanted to eliminate the 'idiot character' voice cliche. In several episodes, he can be heard humming similar to The Three Stooges, a reference to this, such as "Nurse Stimpy" and "Ren's Insomnia."
- Stimpy's humming could be an inside joke towards Billy West, his voice actor, who starred on The Howard Stern Show and was known for his Three Stooges impressions that ultimately convinced John K. to give him the role.
- His last name is apparently "Cat", but the J. initial of his middle name remains a mystery.
- Stimpy appears in Nicktoons: Attack Of The Toybots as a playable character. Spongebob Squarepants is required to unlock him in Sewer Surfing.
- In Nicktoons: Attack of the Toybots, Stimpy uses a large toothbrush as his weapon.
- In the beginning of the series, he is shown to have a deeper voice, which got lighter as the series progressed, around the time the Spumco era ended.
- Stimpy is considered to be the hero of the show, while Ren is considered to be more of the anti-hero.
- Stimpy appears in Nicktoons MLB as a playable character, voiced by Eric Bauza, his Adult Party Cartoon voice actor.
- He shares a lot of similar characteristics with Spongebob and may have been an inspiration for him.
- His and Ren's appearances in the Stephen Squirrelsky and Friends' movie spoof travels are The Great Hedgehog Detective, The Sword in the Stone, Vanellope Von Schweetz, The Train and the Boat, Toon Age, Cub and Company, Hoodwinked!, Beauty and the Grizzly Bear, The Rescuers, Nikki's Adventures of Sing Along Songs Episode 4, The Rescuers Down Under, The Secret of NIMH, Nikki's Adventures of Sing Along Songs Episode 6, The Little Mer-Lioness 2: Return to the Sea, Skunkules, Home on the Range, Kermit's Winter Wonderland, The Little Jungle Boy, Kermiladdin 2: The Return of McLeach, AiAi the Monkey and A Day for George, The Reindeer and the Deer, Animal Story 2, AiAi the Monkey's Grand Adventure: The Search for Tails, A Cartoon Character's Life, Nikki's Adventures of Sing Along Songs Episode 7, Here Comes Winnie the Pooh, Animals, Inc, Simba 2, Miss Bianca and the Bernard 2: Fievel's Adventure, FernGully: The Last Rainforest, A Pooh in Central Park, Bubblesrella 2: Dreams Come True, Kung Fu Owen, Nikki's Adventures of Sing Along Songs Episode 8, The Thomas O'Malley Movie, Kermit Returns, Fievel the Red Nosed Mouse and The Island of Misfits, Nikki's Adventures of Sing Along Songs Episode 9, Cloudy with a Chance of Meatballs, Finding Alvin, Animated Tale, The Forest Book 2, and Nikki's Adventures of Sing Along Songs Episode 10 and will even be in more movie spoof travels.
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