Rene "RC" Gonzales got my vote, but Jose "JJ" Buatista ran a close second. Both of these guys changed their "official" names twice during their Orioles tenures. (Must have driven Rex Barney nuts, rest his soul).
Gonzo was a friend of a friend of a friend, so I got to use his tickets a few times, which is just about all it takes to win me over as a fan for life; I'm that easy.
I worked at the Capital newspaper in Annapolis during the Why Not? season and on two occassions I got to correct photo captions where the editor tried to give credit to that "number 8" guy when my man Rene (who wore 88) was the one making the play. Justice served.