My first choice is circled, Hugues Quester. He has all the qualities I'm looking for in a Drac/Vlad. He's reasonably hideous, his manner is somewhat stiff and formal yet he also seems capable of homicide. Plus he looks like he just rolled out of a coffin. In addition, there's something mildly dashing about him, in a greasy, creepy, spit-up-in-your-mouth-a-little-bit kind of way. It turns out that he actually was in a vampire movie, The Iron Rose, which I've never seen. I know him from another film, Tale of Springtime.
The runners-up are, clockwise from top left: Anthony Perkins (too obvious of a choice maybe), Peter Lorre, Roschdy Zem, Malcolm McDowell, Jonathan Zaccai (he was much creepier and greasier looking in a movie I saw recently).