I borrowed this thread idea from another forum. What do you think the worst possible class that could be announced for D3? Note: This can be something that they have already said will not be released, this is just for fun.
My vote: A healing class. I know Blizzard has said they won't have a healing class and I applaud them for that. The fact that every class is a dps class is my favorite part of Diablo. Nothing sucks more than not being able to play because you can't find a healer or being forced to play a healer just so that your guild or friends can play together.
He can't really fight, nor can he take much damage - but he can chat up a real good conversation and he provides party bonuses to 'Finding a good place to eat' and 'Don't buy stuff from that guy' - both invaluable traits when in town.
His one defensive measure is that he looks like an NPC commoner, so when the hordes of Hell invade the towns, they might skip right past him.
You were once a Fallen, running around in your pack of Fallen, felling heroes from all across the land. Then you got bored, and ran away. Once a follower, now struggling through the fallout of your actions as the former Fallen, the Fallen Fallen. Following the Fall of 2009 you fell down a flight of stairs and fractured both your legs, feeding the infamous flag that has befallen you... the first Fallen Fallen Fallen.