Of course, I'm sure there are tons that I have left out, but I didn't feel like listing 40 names! lol. I figured that list would give everyone a good start.
What I'm aiming at here is that there were a number of different time periods during which our characters lived. And while the characters may have been the same in some time periods (i.e. 1960s Barn and 1897 Barn), they were different as well, in their actions. Because we all know that 1960s Barn, being the way he was after he was cured, would've never committed the atrocity against his family that he did in 1897.
The idea was sparked as I was watching the last of the Leviathan episodes last night, and I realized that 1970 Angelique, the one who was Mrs. Rumson, was really one of my favorite of all her incarnations over the years. Her outfits, hair, jewelry, wardrobe in general is spot on, and really adds something to her. I get the image of "rich suductress" who will kill anyone in her way. Her "supposed" life gets turned upside down with the mention of one word: Leviathans. And the arc that she goes through with her life taking a dump and her revenge path, is one of the best, IMO.
So: My favs from the list above are 1970 Angelique, 1960s Julia, and 1795 Barnabas.