Hmmm, I wonder if, by that logic, you could call a Feral Druid a Gangrel?

It's actually very good and interesting logic. Heck, that could mean a warrior could be a Brujah, the Forsaken are Nosferatu, a Shadow Priest could be a Lasombra (Or Malkavien, or Ravnos, or possibly Ventrue is Mind Control = Dominate).

...Damnit, now I'll be up the rest of the night thinking about this.

On our realm, there is a druid called Gangrel :) When I saw him first I even whispered him telling that I love his name :)

I think that playing like a gangrel is more than possible with a druid, however I cannot imagine him using nature healing spells. Thorns sounds ok for me. He would rarely shift out of feral form, although tauren is ok even out of form. The best would be, however, the worgen druid, i suppose. Why are worgen in the alliance? :( Your druid would not want to hang around cities much, instead walk around in the woods, and sleep in some cave during the day. However, it is hard to imagine why he would go with a group of people to dungeons.
Oh I dont want to work now, i wanna play my druid :S
http://en.wikipedia.org/wiki/Gangrel_%28Old_World_of_Darkness%29