I think you guys are talking about the same guy Henry Gale (so as not to upset Benmer ) and Ben Linus. I think Jacob could be his brother - one on island; one off island ( the whole thing with Gary Troup's book "Bad Twin" keeps screaming out to me for a purpose on this show). I think Ben Linus' name could really be Ben Linus DeGroot. I think he is Karen DeGroot's son, and that's who's in the gigantic hamster portrait in Ben's living room.

__________________