Who's the Center of the Hollywood Universe?

You probably know about the "six degrees of Kevin Bacon" game, which shows how every Hollywood actor can be linked to the Footloose star.

But Bacon isn't your best choice if you want to find someone who, on average, has a smaller distance between connections. See http://oracleofbacon.org/center.html for an analysis that hunts down the true center of Hollywood.

And okay, any thoughts on who the worst is? The analyst gives the connections, so you know the most obscure actor has been in one movie with just one other person.