brainiac - that's interesting.
Have you seen any other of Mr Roth's roles? He was wonderful in the long-running series Lie To Me, one of the few British actors on television who actually talked like English people talk.
I have seen him in a few dramas and films, and his range is excellent.
I find him completely believable as Christie, except he lacks the narrow pinched face that Christie had, but then so did Sir Richard - no actor can lose substance in their face, only add to it if required. He makes up for it with those soulless eyes - wonderful, all the acting is in the eyes on TV.