Since I've been inactive I missed this great thread, luckily I've found it.
Past - Sakuraba, Hughes, Tito, Sherk, Gomi, Monson, Arlovski, Fedor, Big Nog
Now - Okami, Stun Gun, Shields, Fitch, Gomi,Monson, Bisping,Hunt, Shogun, Big Nog, El Nino, Ross Pearson, Josh Koscheck, Korean Zombie, Tatsuya Kawajiri, Shinya Aoki,Brad Pickett, Jussier Formiga, Bibiano Fernandes
Future - Honorio Banario, Kyung Ho Kang (Future BW champ, unless The Flash joins the UFC roster, Kazuki Tokudome, Korean Zombie, Jussier Formiga
It feels like I'm missing some important guys, but its early in the morning
Sig Credit - El Bresko