It's probubly Axel beacause my theiry is when the EM says: "Let me test you're strangth(sorry that I spelled it wrong)." Axel also says that in COM! Well the reason i put it in the KH2 section is beacause mabye since Axel plays such a big role in Kh2 he goes to BHK to tell him where Sora is and how strong SOra is! ANd also mabye in deep dive the unknown says to the other one "He looks just like u." and EM says somthing like that. O.K. it might not be Axel but i don't know if u don't belive me about the qoutes go to this page: http://www.kh2.co.uk/?kh=Videos and go to the unknown battle 1. Plz don't flame me! Tell me waht u think about my theory.