Crashing The Fellowship

I've probably seen The Fellowship Of The Ring fifty times since it premiered way back in 2001.

Recently I watched it, and during the iconic Gathering Of The Fellowship scene, I noticed this guy lurking in the background of the shot for the first time. Who the hell's that guy? 

Seriously, Peter Jackson? You couldn't have nudged the camera over to the left just a little, to cut this guy out of this all-important scene?

"You shall be The Fellowship Of The Ring. And Larry!"