Although your enquiry was a long time ago and I imagine that by now you have been able to find out a great deal more about this boy, I can tell you that he died in 1990. He was fifty eight years old. My late mother spoke of his sister as a friend from her childhood. I believe Tony suffered from heart disease. I have no confirmation that this was the cause of his death, although I suspect that it may have been. He was for the greater part of his life unwell.There is also some mystery as to his natural mother. At the time of the audition for Great Expectations he had a step mother. Whether his natural mother died, which I suspect, or divorced his father I cannot be sure.
He was by all accounts a likeable gentle boy gifted in drama. I feel he had a raw deal, both with his health and his career. The brightest candle the shorter the life. May he Rest in Piece.