Doctor Neo Cortex

Doctor Neo Cortex (also called Dr. Cortex, Dr. N Cortex or just Cortex) is one of the major antagonists of the Crash Bandicoot series, actively playing a villainous roll in both the main and fan version of the story. He is one of two primary antagonists (the other being Crystalis in Crash Bandicoot: The Shattered Crystalis.

Doctor Neo Cortex is responsible for the creation of many of the series' mutant characters by taking normal animals and genetically enhancing them with the Evolvo-Ray. While the process tends to work out this has also backfired greatly on him, most notably when it comes to evolving bandicoots. He generally isn't fond of any of the Team Bandicoot members, but he considers Crash to be his most important enemy by far.

Crash Bandicoot: The Shattered Crystalis
Cortex is one of the the games' major plot figures and a central antagonist.

A dispute between him and Uka Uka shorlty after the latter removed Cortex from Crash's brain by force eventually results in the doctor's banishment to a far away, deserted planet. It is here that Cortex encounters the purple crater that would eventually be let free as Crystalis. The creature quickly become angered at the doctor and questioned Cortex's purpose on the planet. Crystalis accurately explained Cortex's reason for being on the planet and discusses what the creature used to be like to him. Soon afterward, the two meet an agreement: Cortex shall conquer the land he wants to rule while Crystalis would destroy whatever is left. The Power Crystals and the defeat of the bandicoots would be vital to this plan. Shortly after the deal is made, Crystalis constructed a base for Cortex to use which had a piece of the Master Crystal inside. Cortex would soon construct a base of his own near Earth and assemble a new army that would be used to search for Power Crystals, the remaining pieces of the Master Crystal, and a good plan to destroy the bandicoots once and for all. He liked to call this new plan 'Project C' and the beginning phases of it lasted three years.