He played college football for the Florida State Seminoles, earning unanimous All-American honors in 1991.
He was named first-team All-American and won Jim Thorpe Award, given annually to nation's top cornerback, as a junior.
Lewis first few games off his career he was a reserve to Lewis Billups .In a game against Cincinnati in 1992, his rookie season, Buckley set what remains a current record as the youngest player to return a punt for a touchdown in NFL history (21 years, 105 days).
While playing for the New England Patriots, in the 2001 AFC Championship Game against the Pittsburgh Steelers, Buckley had an interception in the 24–17 win.
On April 6, 2022, it was reported that Buckley had accepted a job with the XFL to become the head coach of an upcoming Orlando franchise (the former Tampa Bay Vipers).
[10] On July 25, 2022, the XFL confirmed a franchise in Orlando, Florida with Buckley announced as head coach.
[13] Buckley was hired as the head football coach at Mississippi Valley State University, a historically black college, on January 21, 2025.
Buckley majored in theater with a minor in political science in college, and played baseball in the Atlanta Braves organization prior to reporting to Green Bay's training camp in July 1994.
Sports Talk radio host Jim Rome refers to Buckley as "T-Buck" and credits him as one of The Jungle's first guests who appeared consistently on the program.