There is an unused playable character named Lambert in the Japanese version of Xenoblade Chronicles. He has various animations for battle sequences, as well as running, walking, and jumping animations for movement outside of battle. The model's filename is pc2. Because "pc" stands for playable character in the game, this indicates that he was playable at one point. It's unknown if he was intended to be in the final game, or if this was simply for testing purposes. His model was found in "work.pkb", which is only found in the Japanese version of the game.