The Brain.

"I'm called the Brain. I used to be called Brian, I changed a couple of letters around."
KAOS scientist who got his job by answering an ad in the Penny Saver and sabotaged the Pentagon computer system during some free time at lunch.

The Brain uses his work in "mind augmentation" to implant a brainwashing chip in Agent 66 in order to have her assassinate visiting African President Mazabuka, increasing the plan from two to fourteen phases because it was not complex enough for his "abnormally large brain".

When the plot is thwarted by a 66's partner Zachary Smart, the Brain believes it was only for lack of more phases.

Portrayed by Mark Roberts [GS95 Episode #3: "Goodbye Ms. Chip"].