Wikileaks appears as a regular rat, with dark gray fur and a blond head of hair.
In "Bass to Mouth", he seemed to enjoy posting about the students of South Park Elementary on Eavesdropper, even though any potential self-benefit is outweighed by the cost of running and maintaining a website. He obsessively posts about the students, even putting himself at risk of being caught. Wikileaks was shown to be intelligent enough to operate a computer, and record things with a helmet cam.
- Wikileaks' name and character is a reference to Julian Assange's website WikiLeaks, on which leaked government documents are posted and made available for download.
- Wikileaks' hair is the same color and style as Julian Assange.
- Wikileaks is also used to reference the rat and villain "Martin" from The Secret of NIMH 2.