I think this acting legend is now deserving of his own thread, based on the following from the FT in November 17 and due to the fact I have him on my Nags Head DP10 as well!
Gatiss recognises someone at the door to the restaurant, a frail figure in a wheelchair, wearing a beanie. It’s Ian Holm, the 86-year-old actor who just three years ago was appearing as Bilbo Baggins in The Hobbit films. “He was brilliant,” says Gatiss, transfixed.
https://www.ft.com/content/51d3c7e4-c8c2-11e7-ab18-7a9fb7d6163e
He seems to now be in permanent retirement and IMBD lists no roles since the aforementioned Hobbit in 2014. Like Alan Rickman, I suspect many people will only realise just how fantastic an actor he was after he has departed.