Thomas's prep career included being named a Super Prep All-American, Prep Star All-American, Rivals 100, Tacoma News Tribune Western 100, All-CIF Southern Section first-team, All-CIF Division IV and Los Angeles Times All-Ventura/North Coast pick as a senior defensive back and wide receiver.
During his senior year at Rio Mesa High School he recorded 81 tackles and 5 interceptions on defense and 27 receptions for 430 yards with 5 touchdowns on offense.
In his freshman year in 2005, Thomas played in 9 games as a reserve cornerback and on special teams.
In his redshirt senior year in 2009, Thomas started all 13 games and was named Second-team All-Pac-10.
On August 2, 2012, Thomas was traded to the Philadelphia Eagles along with a conditional 2013 seventh round draft pick for linebackers Moise Fokou and Greg Lloyd, Jr.[2] On April 4, 2014, he signed with the Toronto Argonauts along with his former USC teammate, Kyle Moore.