Inspector Ivan Bowler, an inspector on his first "big" case. He is highly intelligent and thoroughly methodical, but also a bit secluded, with his only friend being a painting of a fish. He is also a giant eyeball.
Inspector Batey is Ivan's "mentor", although the only thing he teaches is the plainly obvious. Although incompetent, he's at least a just member of society... right?
Inspector Toppler is Ivan's mentor's mentor. Unfortunately, he is less competent again, and his age has taken its toll on his manners and behavior. Basically, he is a tired old man.