Engineer

I think this is just more likely to encourage people..

Medic
Soldier
Spy
Pyro
Sniper
Demoman
Heavy
Scout

Team Fortress 2 and Engineer belong to Valve.

Oh, and I stole the turrets line from my friend Scott.

EDIT: Because several people have asked me now, no that is not a jarate jar in his dispenser. I drew this before the jarate update, so was unaware that what was supposed to be a bottle of pills would look so similar to a jar of piss. Hilarious in hindsight I suppose.