Rowdy

A mixed martial arts star 

Puts on a loud and "rowdy" persona; but he's really a sweetheart who loves reading (With his little glasses) in front of the fireplace with a cozy book, and Shakespeare; poetry and classical music

Watching him flip gives people whiplash.

Definitely has that "point of no return" When it comes to his temper. 

He has very poor eyesight, but that doesn't really intrude on his ability to fight. However, he sees the 'fights' as entertainment and a nice stress relief more than anything else. As such, he doesn't really get very competitive (beyond being showy for the cameras) and he has great relationships with his fellow fighters- often acting as a mediator and befriending many of them offstage easily