Francisco Bueno - His name is probably not known to more modern fans,but he was infamously known in my time as the guy who Igor Vovchanchyn faceplanted.He'd won his first fight in PRIDE,but no one ever talks about it. I think after this he never fought in a major promotion again. I remember he had put out some Jiu jitsu instructionals. Had to be a big blow to be known for only this though.
Olaf Alfonso - hes basically only known for his highlight KO losses,and his "fighting jesus" moniker. Guy has literally been killed many times. He also looks like a guy that has been killed that many times. I guess he keeps resurrecting.
Kris Moutinho - He did lose,but it was kind of a bullshit stoppage. He was showing alot of bravery and durability in the fight,but his 15 mins were up real fast.
Cabbage was probably also most known for the beating he took against Tim Sylivia. Fred Ettish is def another one. Alot of the early UFC guys who were one and done belong on here.