Brett is a ten year genius on the same team as Josh and Yoko. He is younger than all the other marshals.
Brett is a headstrong genius, who despite his brilliance feels restricted by his young age. He uses his own personal computer to control the hornet, to analyze DNA, and to use Gluefoam. In addition, he hates to be called a "kid". Brett takes missions more seriously than Yoko and Josh, and often scoffs when the two leave to shirk their mission. He is the most sensible of the group, but due to his young age, and fun loving partners, he is often ignored. He is often used by Josh to do homework for him or for selfish reasons.