Patrik Antonius is a Finnish poker player and a member of Team Full Tilt. He is widely regarded as one of the best PLO players in the world. He has appeared on High Stakes Poker, Poker After Dark and countless televised tournaments.
Patrik was the first person to ever win a 7-figure pot in online poker. The $1.37MM hand was played against Isildur1 on November 21, 2009 and still holds the record for being the biggest pot in online poker history.
Note: Patrik's PLO and NLHE winnings on PTR are accurate after October 2009. Prior to that, PTR did not track PLO (which is where Patrik made most of his money). His lifetime winnings (including live play and tournaments) are rumored to be close to $10MM.