First Appearance: Sins Of The Son
|The son of Charles Xavier, David had 3 different personalities to one body. Lucas, the strongest of the three personalities faked the kidnapping of one of his alter egoís in order to meet his Dad.
After they realised that David had the different personalities, Xavier attempted to use his powers to give David full control but underestimated Lucas and in the end, it was Lucas himself who was whole, the other two personalities now lost.
After releasing that David was taken by another one of his own personalities, Xavier attempted to help defeat Davidís alter egos but failed, causing the rebel Lucas to fully emerge and leaving David completely submerged.