So he is Armand's ancestor. He should have been an archivist instead of Evie Holloway. Armand is the Bureau's historian. If Charles is the archivist, at least two family members will have something in common while working with the police. I wonder if he will be the same as Armand.
Yes, because people don't dress in different outfits in these games. You could be right and it's someone else, but I really do think it looks like Rose and I'm not going to get my hopes up that it's someone other than her.