Nosferatu
A repugnant, pestilential horror, Nosferatu is driven by the thirst for the blood of the young, which sustains his own existence. Bald, wrinkled, and sporting a pair of savagely sharp rat-like fangs, he's hardly the poster boy of vampirism.
His frightful visage strikes fear into the heart, and his unclean touch spreads the curse of Vampirism to any it falls upon. He also enjoys creeping up dramatically lit stairs, sleeping in coffins, and menacing innocent blondes wearing too much eye-liner.
The terrifying Nosferatu was dreamt up by German filmmaker F W Murnau, with an awful lot of help from Bram Stoker's Dracula, in 1922. Considered the best silent horror film of all time, Nosferatu: The Symphony of Horror was nearly lost to posterity when Bram Stoker's widow demanded all prints be burned for copying the story of Dracula.
Fortunately, you can't keep a good vamp down, and Nosferatu rose again in the 30s to be hailed as a classic.