Dating Game

I would imagine cartoon characters date too. Maybe even appear on dating game shows, like this one. The female contestant is Gadget, from Disney's Rescue Rangers of a few years ago. I usually ask people to try to guess who the male contestants are. Two of them are easy, so easy I'll tell you rather than waste time. From left to right, they're The Brain (from Warner's Pinky and the Brain), and Fievel from Don Bluth's American Tail. Ah, but does anyone know the third? I have never yet met anyone who did. The third mouse is a pretty obscure one, but not hopelessly so. I'll give a clue: Walter Lantz.