Marland T. “Ren” Höek and Stimpson J. “Stimpy” Cat, created by John Kricfalusi, are the title characters in the Nickelodeon animated series The Ren & Stimpy Show. Kricfalusi created the characters during his stay at Sheridan College and they first appeared on film in the pilot episode “Big House Blues”. Ren is a scrawny, emotionally unstable ”Asthma Hound” Chihuahua, and Stimpy is a dim-witted, good-natured Manx cat. The show portrays their wacky, bizarre, and often surreal adventures.

Creator: John Kricfalusi
Species: Chihuahua · Manx cat · Stimpy · Ren
Family: Ren, Svën Höek (cousin)
First appearance: “Big House Blues” (The Ren & Stimpy Show) (1990)
Last appearance: Nicktoons MLB