Brackett attended Glassboro High School in Glassboro, New Jersey.
He was signed by the Indianapolis Colts as an undrafted free agent in 2003 and played for the team for nine seasons. He played college football at Rutgers. He was a two-time All-South Jersey selection, a two-time All-Group I choice, and a two-time All-Tri-County Conference choice.
Brackett was a walk-on to the Rutgers University football team
Brackett was signed by the Colts as an undrafted free agent in 2003. Brackett was a backup his first two years until he became a starter in 2005.
That year he had 127 tackles, three interceptions and a sack. In 2006 he was named defensive captain of the Colts and had 120 tackles.
In 2007 Brackett recorded 116 tackles and four interceptions.
He recorded 99 tackles in both 2008 and 2009. He started for the Colts in their Super Bowl XLIV loss to the New Orleans Saints. He was released following the 2011 season on March 9, 2012.
During his career, Brackett was twice named AFC Defensive Player-of-the-Week.
Brackett earned a Master of Business Administration degree after retirement and opened a restaurant in Indianapolis.
Founder, member executive board Gary Brackett's Impact Foundation, Indianapolis. Active Salvation Army Coats for Kids, Leukemia and Lymphoma Society Pennies for Patients Program.
1 child Gabrielle.