Tommy Morrison in subway station
I'm guessing other Sly fans know the name of Tommy Morrison from Rocky V, Tommy "the Machine" Gunn, or also from the world of boxing. In any case, I'm 95% sure that he shows up on the subway station on 57th street, right during the pursuit after they exit the tunnel under construction.
In my version of the dvd, he shows up at around minute 57, he's wearing jeans and a blue/black jacket with a big red emblem on the left side of his chest; he's the 5th person starting from the beginning of the platform, to the left of the guy with the green coat.
I've looked this up online and can't find anything about it; maybe I'm wrong, but its a pretty cool catch otherwise!!