All three characters of Jonathan Rhys Meyers should be merged into one.
He doesn't play three different characters. It's the same person.
He is "Dracula", but in front of regular people he poses as a rich inventor "Alexander Grayson". And centuries ago, before he was cursed with the immortality he was known as "Vlad Tepes".
So unlike Jessica De Gouw who plays two different characters, Ilona (centuries dead Dracula's wife) and Mina Murray (a lookalike of Dracula's long-lost wife and her reincarnation), Jonathan's all three roles are the same person and same character, not three separate ones.