I did the quest and gave the horse Frost to Louis. After a long time of exploring I see Louis walking along and he gets killed by an orc who said Maven sends her regards or of the like before killing him. So you figure Louis is dead and out the game from then on out right. I go back to whiterun and find louis outside the stables. So I don`t worry about it and go about questing and exploring, I return to whiterun and now there are 3 Louis letrushes outside the stables.

Even in consoles there are apparently two of him.

In my game there is one in the inn and he is set to essential and extremely aggressive toward my character ... once he starts attacking he will follow me anywhere. I cannot go to that inn (riften) until this is fixed

I only have two Letrushes in my game, but still...it's a very strange bug.

I road past him on my horse this morning while playing (patch 1.1), and there was 2 of him standing right next to each other, but one of them was halfway through the ground like he had no legs. I disabled the one in the ground and disabled/enabled the standing one. I didn't go inside to see if there was a third one...

I currently have 5 Louies outside Whiterun, and I encountered a sixth running around north of Riften.

Yeah he's special like that

Hahaha, you win.

Haha! Been a while since I last checked, I now have 7:
[IMG]http://i.imgur.com/ClNhu.jpg[/IMG]
Tried casting frenzy, but half of them buggered off and the others tried to fight a horse:
[IMG]http://i.imgur.com/aLRxI.jpg[/IMG]

Got three myself, and one is halfway in the ground.

I got this bug after completing the steal the horse quest and giving it to him. Sometime later there were two copies of him standing outside the Whiterun stables.

Same here. Glad to see I'm not the only one.

It sounds like I have the opposite problem of everyone else in this thread. My Louis disappeared. I spoke to him in the inn and declined his quest. Later, speaking to a man in the prison gave me the quest anyway. The first step (accepting the quest from Louis) is marked unfinished, but he's not in the inn anymore. The quest tracker tells me to go to the inn, and there is an arrow hovering over the spot where he is supposed to be standing, but he is nowhere to be found.

I have 3, well 2 now... one I clicked on while in the console and typed disable to remove him from my game.
The other 2 left are one who seems to travel/wander around the game world on foot and the other stands in or around Riften.

I was tempted to disable/remove the one running around in the game world but figure it can't hurt anything so let him go.

I have seen him twice, both times he was half stuck in the ground. Again after completing his quest.

Nasty little man he is. I've only got one of him, thank which ever god you worship, and I only see him outside whiterun stables when I go to pick frosty up to take him out for his morning exercise.

*makes the obligatory Agent Smith / Matrix reference*