BRUCE SATO is a mechanical engineer and design specialist. A toy designer by day, he brings his creativity and expertise to the MASK program. Working with Matt Trakker, Sato devises and builds private security vehicles to take on threats from both Cobra and the Decepticons. Sato is not a military man, but he understands the needs of combat-oriented vehicles and continues to grow in knowledge and experience. His ownership of his own toy company gives him the freedom and resources to devote much of his time to MASK. Bruce is a fan of puzzles and loves to confound his teammates with riddles, and in the field his pilots his own personal vehicle, which he calls the Rhino.