The third and final main character for the story I'm considering writing... the main idea of it is that a experiment traps these three children's minds inside the bodies of various canines, who are equipped with some sort of mechanical devices. This guy's is internal, but the rest are external. Anyways, the kids (with the help of some others) want to be freed from the other bodies, but they have no body to go back to. So they're in a pickle.
This is Cort (The dog's name) and Finnigan (the boy), and he is by far the strongest of the three. He travels with Ricochet and Austin rather than the other, Patricia. He is also the oldest of the three, being seventeen.