Well, Bram Stoker's original description of Dracula is that he looks like a very old man (which you would if you were centuries old) with a big white moustache and that with each passing victim he claimed, Dracula started to look younger and younger.
The only film that I know that actually used this type of description to any real amount was the Dracula adaptation by Jess Franco in 1970 (coincidentally, Dracula was played by Christopher Lee) although it's more-or-less there in Francis Ford Coppola's 1992 film where Dracula's played by Gary Oldman.
I always thought a cool idea to for Dracula in this sort of look was to cast a young actor but with layers of heavy makeup making them look older. The logic is the older they get, the more layers of makeup they have and the more it looks rather unrealistic and disturbing.
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