I remember watching this as a young girl in 1977, enjoying it enormously, and being scared out of my wits! I've loved the novel since my early teens and admired this BBC version for the way in which it captures the atmosphere of the original. Although it's unfair to single out individual performances in what is superb ensemble playing, Louis Jourdan, in the title role, brings subtlety, intelligence, and a real sense of menace to the character of the Count, Frank Finlay is a wonderfully believable and honourable Dr Van Helsing, and Jack Shepherd is a most disturbing and sympathetic Renfield, especially in his interactions with Judi Bowker's Mina. The script is extremely well adapted from the novel, to which it is particularly faithful, unlike more recent efforts (to their very great detriment). I'm in complete agreement with a previous reviewer - suspend your disbelief, light some candles, and just enjoy the fabulous acting!