Board Thread:General Discussion/@comment-12757511-20130720013429/@comment-10380701-20131023230845

Primsatic wrote:

If I were in his position I'd have jumped at something like that, what would it really take - it's just match the headbobs to the voice most of the time. It's not just the headbobs for Elijah Wood though.

He was voicing Sigma, who had a face and a mouth.