Foremost among the no longer living I would like to meet Mary, the mother of Jesus. His whole childhood, apart from that episode in the temple, is unrecorded and I am really curious about it, and about her and what it was like being the Mother of God. Were there temper tantrums when he was 3? Was he a moody adolescent? Did he do his chores willingly or did you have to nag him? How much of a scandal was there really about his birth and what exactly does the bible mean by "the brothers & sisters of Jesus"? what did she think of Mary Magdalen? I have a lot of questions for her actually.
I'd also like to meet Elizabth I and Henry VIII and get a few historical ambiguities cleared up.