I believe he's the Auctioneer. Think about the complexity of movement needed for that figure. The shaman in the Indian Village is also another former Lincoln. If you look, you can see he has the squatting motion that was used to make Lincoln sit. It was about 10 years ago that I heard this, so I can't remember the source.
What amazed me was Oogie Boogie. That figure can do so much more than they let it do when it was Big Al! Of course, I've heard that most of the figures only show off a fraction of their real potential.