TF2 Meet The...

Meet the Sniper

http://www.gametrailers.com/player/35249.html

Meet the Scout

http://www.gametrailers.com/player/33023.html

Meet the Demo

http://www.gametrailers.com/player/26185.html

Meet the Engineer (my favorite)

http://www.gametrailers.com/player/24784.html

Meet the Soldier

http://www.gametrailers.com/player/23880.html

Meet the Heavy

http://www.gametrailers.com/player/19522.html