He played college football for the Washburn Ichabods and was selected by the Tennessee Titans in the seventh round of the 2008 NFL draft.

Williams also played for the Baltimore Ravens, Philadelphia Eagles, Seattle Seahawks, and Washington Redskins.

[2] Williams was the only NCAA Division II player to be ranked in the top 10 in the nation in interceptions and kickoff return average in 2007.

Williams holds the distinction of being the only player in Washburn history to score on an interception, kickoff return and a reception in the same season.

[3] During his Pro Day, Williams had a 330-pound squat, 245-pound bench press, a 242-pound power clean, and a 14/18 Wonderlic score.

The Titans signed Williams to the active roster on October 3 when quarterback Patrick Ramsey was released.

In a game against the Miami Dolphins, Williams caught a pass on a fake punt from Sam Koch and ran it for a first down.

[7] In 2011, after the departures of corners Josh Wilson and Fabian Washington, and with Williams again playing well in Training Camp and preseason, he earned his first NFL start alongside Lardarius Webb in a Week 1 victory over the Pittsburgh Steelers.

Williams forced Jones to fumble, and the ball was recovered by fellow cornerback Jimmy Smith inside the five yard line.

On January 20, 2013, in the AFC Championship game against the Patriots, Williams intercepted a pass from Tom Brady in the end zone in the 4th quarter with 1:06 remaining in regulation, sealing the win for the Ravens 28–13 and a trip to Super Bowl XLVII.

[13] Williams started all 32 games over 2 seasons with the Eagles, recording 126 tackles, 5 interceptions, 21 pass deflections, and a sack.

Williams finished his stint in Seattle with 46 tackles, 1 sack, 1 pass deflection, and 1 forced fumble.