Just learned of this with real regret, and came here to start a thread on it, to find that you had already done so, and many thanks for that.
A superb and exceptionally gifted actor, one who inhabited and informed every role he ever played with insight and extraordinary feeling.
Actually, his presence in a movie, or TV show, was enough to make me want to watch it. His screen presence was gripping, his voice extraordinary, and his ability to lose himself in a role astonishing.
As a teenager, I remember seeing him play Caligula in the fantastic TV series, I, Claudius - his performance was breathtaking (in a superb cast - Patrick Stewart played Sejanus), and I also watched, mesmerised, the TV drama, "10 Rillington Place" where he played the tragic and doomed Timothy Evans, a performance beautifully matched by Richard Attenborough, who played the chilling suave, and sinister John Christie.
Some of the parts he played onscreen, in movies, were equally unforgettable "The Elephant Man", "The Field", and - of course, Garrick Ollivander in the Harry Potter franchise.
A terrific and compelling actor. As with Alan Rickman - whom I also thought superb - I will miss having the opportunity to see him play new roles.