Ren Hoek

Marland T. Hoek, also known as Ren, is one of the titular main characters from the Ren and Stimpy Show series.

Ren is depicted as the rude, psychotic, and violent "friend" of Stimpy - to the point they often live together in the same house: although Ren cares for Stimpy he is also extremely selfish, lazy and intolerant - this coupled with the stupidity of Stimpy often causes Ren to become abusive towards his friend, usually in exaggerated and graphic ways.

Ren is famous for his habitual slapping of Stimpy whenever he becomes enraged, his fist often growing comically large before he attacked - his favorite expression is "you idiot!" spoken in a heavy accent: despite the obvious abuse he receives, Stimpy is often quite happy to allow Ren to do so, being too stupid and/or gentle to think of fighting back.

Ren also has a habit of breaking down into psychotic babbling that turns violent, with nightmarish imagery often being shown as Ren drifts into what can only be described as madness - sometimes instead of becoming violent Ren would instead break down into tears (suggesting he has no real control over his emotions, a fact later confirmed in the Adult Party version of the show).

Appearance
Ren is a small brown furred chihuahua with big, round pink eyes.

Personality
Ren's violent behavior and foul attitude is heavily played upon in many episodes of the series, though he does have a softer side he rarely shows and can be remorseful when he goes too far - most of the time however Ren is a psychopath with extremely volatile and disturbing behavior as well as a bullying nature. Ren is greedy, delusional and (as mentioned above) murderously insane - all traits which make him an antagonist, though he does genuinely care for Stimpy in his own bizarre way.

His abusive nature is further empathized in the Adult Party version of Ren and Stimpy, which due to being geared directly at an adult audience was free to re-envision Ren as an even more psychotic and cruel (yet still somewhat anti-heroic) figure. Ren is a bad-tempered, aggressive, greedy, delusional, and murderously psychotic chihuahua. He has stated once in "Stimpy's Invention" that he "loves" being angry. He is extremely selfish and childish, and at tense times mentally unstable. He is also shown at times to have many mood swings.

Trivia

 * The origin of the gag of Ren being referred to as a "mosquito" could have been inspired by how many of the cast and crew members had at first believed him to be a fly or a mosquito after seeing his concept art.
 * It is implied several times throughout the show that Ren may be older than Stimpy, perhaps by a large margin. This is supported by how in Ren's Retirement, Ren is stated to be ten - 53 in dog years - while Stimpy is said in "Stimpy's Big Day" to be three - 28 in cat years.
 * In "I Was a Teenage Stimpy" Stimpy was shown to go through puberty, with Ren taking on the role of a conservative father to him, being happy that once Stimpy 'grew up' he'd have somebody to take care of him.
 * Furthermore, his voice is deeper in an attempt to make him sound older in the Adult Party Cartoon version.