The Gooner, a tenth class in TF2 silently removed on October 4th, 2008 due to his inclusion alone pushing the game to an AO rating. This is an archive of the Gooner's "Meet The" animation.
Sources (In order of inclusion):
Team Fortress 2 - Meet the Heavy
Aphex Twin - Alberto Balsalm
Delak - Heavy is Dead
Hozier - Take Me to Church
Scatman John - Scatman's World (Single Mix)
Carly Rae Jepsen - Call Me Maybe
The Simpsons - SE7 E21
Team Fortress 2 - Meet the Sandvich
...And various sound effects.