Born:Sep 25, 1984
Age: 41 Alive
From:Indianapolis, Indiana, USA
Department:Acting
Total Credits: 9
Avg Rating: 5.8
UFC 65: Bad Intentions
Also known as: Irish
Jacob Allen O'Brien is a retired American professional mixed martial artist who most recently competed in the Heavyweight division. A professional competitor from 2005 until 2012, he fought for the UFC, WEC, and DREAM.
