Ren and Stimpy, nicktoons, old nickelodeon shows Ren and Stimpy is the name of the cult cartoon hit of the 90s that was one of the best programs to ever hit the list of the old nickelodeon shows. Ren and Stimpy were also the names of the title characters a neurotic and bordering on psychopathic chihuahua (Ren) and a simple minded cat (Stimpy). I really...