The geneticist behind the transdogmafier and the Road Rovers. He’s the headmaster of the Road Rovers and he was the original creator of the transformigfier, the one he chooses these 5 dogs to be the Road Rovers. Without him, the world would have been ruled by the cano-mutants led by Parvo.
When Shepherd attempted to recover Scout from Parvo, he gave Parvo what he asked in return of Scout. Unfortunately, he was tricked, and he received a bomb instead, causing the whole laboratory he owned be fallen into ruins and sending to the underground. By then, Parvo believed that Shepherd died there. However, he had no knowledge that Shepherd survived, leaving him to finish what he needed to. And so, he built the team’s headquarters, with everything they needed: weapons, food, vehicles, bathrooms, transformation pods, recovery room, even a meeting room. Whenever there’s danger or troubles in an indicated place, Shepherd calls for the Rovers and informs them about it. It was never told how Shepherd got his hair white after his disappearance, nor why he’s always behind a gate of light, almost hiding entirely his identity. Though he gives a very simple reason: “special effects."