Before playing in the CFL, Brown was a five-year veteran of the Arena Football League, where he played for the New York Dragons, Arizona Rattlers, Columbus Destroyers, and Kansas City Brigade. In the 2006 Arena Football League season, he was named the AFL Defensive Player of the Year when he led the league with 11 interceptions and 133 interception-return yards. In 2009, he signed with the Montreal Alouettes of the Canadian Football League and was a member of both the 97th Grey Cup and 98th Grey Cup championship team with the Montreal Alouettes. In 6 seasons in the CFL, he has recorded 271 tackles, 17 interceptions and 7 fumbles recovery.