Making his debut in 2002 after being drafted by the Hawks at pick 43 in the 2000 AFL Draft, Williams was originally a small forward, but coach Alastair Clarkson found that he was more useful as a full forward during the 2005 season, where he kicked 63 goals, making him the leading goal kicker of the club.
[1] Known for his flamboyance, pace and use of the "shotgun", a trademark celebration he used to use after kicking a goal, Williams was one of a number of young players at Hawthorn.
In the 2008 Grand Final, Williams and Stuart Dew kicked four goals in three minutes to put Hawthorn in a winning position late in the third quarter.
In the twilight of his career, Williams was unable to gain senior selection and played with Essendon's Victorian Football League affiliate the Bendigo Bombers, until his retirement which was announced on 25 July 2011.
[3] Williams became the inaugural coach of Western Region Football League club Newport Power at the end of 2015.