Board Thread:General Discussion/@comment-6747658-20130401084750/@comment-4913740-20130419112022

Besides, I wouldn't rely on the voice actor remaining the same as whoever the character is, if he indeed is a previous character we know of.

Since Kojima is not averse to changing Big Boss's VA, it would be more than likely that if a past character was to return, he would probably change their VA either to keep it a mystery or just to display the change in the character since they were last seen.