A cute little fellow, and one of two little people I always recommend for the groom as a cake topper! (The other groom being the Gambler. For the bride? Trickier, but either paint a standard woman white, or use the nurse from the hospital.) This guy came with the #135 Play Family Animal Circus (a small set with a few animals, and circus equipment, such as a trapeeze), and the Circus Train #991. I've found him with both a wooden and plastic body, but only with a plastic head. He's a kid sized figure with a little mustache, but no nose. He wears a top hat and a white frontpiece to give the impression that he's sporting a tuxedo. The frontpiece has a molded-in collar and bow tie.
(Go to the Gambler's page to see these two guys side by side, so you'll have an easier time telling one from the other!)