Cameron Fachman: Ender's Classmate?

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The Columbus Dispatch is reporting that Cameron Fachman, a 14-year-old who appears in the "reaping" scene of  The Hunger Games movie which just hit theaters today, has also filmed a small speaking role for Ender's Game.

Since the role has already been filmed, it seems likely that his character was one of Ender's schoolmates on Earth. Perhaps one of Stilson's friends?

You can view a video of him talking about getting the role in The Hunger Games here. 

What do you guys think?  Any speculation as to what other roles he could have possibly been playing?