I'm not sure about Oliver being Cain, however you all did bring up some good points. My Theory however is that Uno could be Cain. The time flux seems to far off, but it is possible, not to mentions Uno is not one of the prettiest guys around. I don't recall wether or not Uno uses one or two swords, but at least he is old enough to be some help to our heros. Also our Silver bowed Archer was sort of flirting with him at Salidar. Then again she seems to look at every butt ugly man with interest." Anyway just my opinion, please give me feed back.