Peyton Manning played quarterback for 18 seasons.
Peyton Williams Manning ( born March 24 , 1976 ) is a former American football quarterback who played 18 seasons in the National Football League ( NFL ) , primarily with the Indianapolis Colts . Considered to be one of the greatest quarterbacks of all time , he spent 14 seasons with the Colts and was a member of the Denver Broncos in his last four seasons .