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Mental Mouse
Screen shot 2011-07-01 at 11.52.10 AM
Gender Male
Species Mutated mouse
Abilities Genius Intellect, Psionic Powers
Occupation Genius Super-villain
Interests World Domination, Cheese
First Appearance Can't Nap
Voiced By Tom Kenny

Mental Mouse is an evil mutated mouse who appears in the episode "Can't Nap". He steals Valhallen's mighty axe and uses it to amplify his own powers in order to corner the world cheese market, but is defeated when White Tiger appears and aids Valhallen in retrieving the axe and restoring his powers. He was voiced by Tom Kenny.

In "The Justice Friends: Pain in the Mouth", Mental Mouse is among the villains that are fooled into attacking The Infraggable Krunk by Major Glory so that one of them can knock the chip fragment out of his tooth upon Major Glory claiming that Krunk has lost his powers and a strike on his jaw would end his onslaught on the forces of evil. He then leads the villains into attacking Krunk on his jaw.


He is a large-headed rodent with a giant brain, hence his name, that's sprouting out of his head. Mental Mouse wears a set of armor almost identical to M.O.D.O.K.'s, an orange suit with a jet at the bottom that allows him to hover.


He is an evil genius, but like any cartoon mouse, he has a strong love of cheese and hopes to corner the world cheese market.


Mental Mouse possesses high intelligence as well as strong psionic and telepathic abilities. He can harness the power of mighty objects to amplify his own abilities.



  • He is a parody to the Marvel supervillain M.O.D.O.K..