Sport: Boxing
Career span: 1994-2002
Max listed playing weight: 417 lbs
Accolades: 77 career wins, 58 KOs, former IBA Super Heavyweight champion

If you've ever read the X-Men comics, then you may have already made the connection between Butterbean and his closest cosmetic counterpart, Blob. Needless to say, Butterbean doesn't have the shapeliest figure around, but you have to give the guy credit for stepping up and making a career out of his physique at all. Able to throw his weight into a powerful knockout punch, Butterbean won 51 straight matches before falling to Billy Zumbrun and Larry Holmes in 2001. Since then, he's bounced around various forms of professional fighting, including MMA and pro wrestling.