Well, Vekarin has sharp, almost aquiline features (but maybe not that pointy). He has a heavy brow and long, dark hair. He was sired in his late twenties but looks very grizzled and experienced. Victarias has a broader face than that of Vekarin with dark, piercing eyes.
Other than that I can't really say. I'm having trouble with adjectives today.
Heres a picture. http://images1.wikia.nocookie.net/tardis/images/8/89/DW_The_End_of_Time_%28Part_1%29_409-1-.jpg and heres a trailer to give you an idea of what he'd be like. Basically he just needs longer hair. http://www.youtube.com/watch?v=h7bB3oo3-6Y&feature=related
i think Ian Somerhalden would make a pretty good Vlad actually now that he's more grown up.(Timothy Dalton is too old, Vlad is suppose to be a "young man") about the bulk, Vlad is pretty slender isnt he?
Vlad in Vampire Wars is inspired by Christopher Lee though but im afraid he's also a bit old ^^
edit: Or Jason Isaacs, probably the only "old guy" who would be fitting as Vlad, he has that arrogant and aristocrathic feeling
here he is as Lucius Malfoy from the Harry Potter movies