Demon Rat
Biographical information

Casey's Mind

Physical description

Demonic Humanoid Rat

Hair color

Black Fur

Eye color


Out of universe information

2012 series

Teachers and Students

The Demon Rat is a hallucination that was seen by Casey Jones when he was sprayed by a fungus spawn in the episode, Fungus Humungous.


Fungus Humungous - When Casey reported back to the turtles that he lost April, they went back to look for her. Casey was then sprayed by a fungus spawn, and started seeing rats, the first of which was The Demon Rat. Later in the same episode Casey is surrounded by two Demon Rats, while Leo was fighting Fungus Humungous. While the credits are rolling in, you can hear Casey talking to Raphael about the Demon Rat.


  • The Demon Rats are a dark version of Splinter without his robe and beard, and both have the same white markings on their noses.

See Also


Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.