Anthony Parker :)
Currently, no player wears #18 for the NY Giants.
#18 Dave Cowens - Former NBA Player #18 Payton Manning - NFL Player #18 - Sasha Vujacic - NBA Player
Casey Keller where ever he si these days is an American Goalie who wears #18
According to the NBA website (http://www.nba.com/clippers/roster/index.html), CNN/SI (http://sportsillustrated.cnn.com/basketball/nba/rosters/clippers.html) and ESPN (http://sports.espn.go.com/nba/roster?team=lac).... Nobody... :-)
Placekicker David Buehler.
Ashley Young wears jersey number 18 for mancunian republic.
Andruw Jones currently wears #18 for the Yankees.
As of January 22nd, 2012, Jermain Defoe currently wears the number 18 shirt.
Currently, wide receiver David Gilreath wears #18 for the Steelers.
Peyton Manning wears the number 18.