Doctor N. Gin (Earth-9429)

Doctor N. Gin is an insane cyborg scientist and lackey who works under Doctor Neo Cortex ever since his introduction in Crash Bandicoot 2: Cortex Strikes Back, replacing Doctor Nitrus Brio as Cortex's right-hand man. With the events of Crash: Mind Over Mutant, he was replaced by the very person he succeeded without his knowledge.