Dr. Breen

' ' 'Dr. Wallace Breen' ' ' is the main antogonist of Half-Life 2.

Breen made his first and only appearance and Gordon Freeman's rival in the Fall 2011 Contest (or as it was known, the Rivalry Rumble). There, after clearing vote-ins, he and Freeman lost their first-round match against Phoenix Wright and Miles Edgeworth. Considering most people consider Breen the anchor that weighed Freeman down from a possible victory, it is doubtful he'll ever reappear.