Agent Simon Beresford announced Friday that Griffiths died a day earlier of complications following heart surgery at University Hospital in Coventry, central England.
He paid tribute to Griffiths as “a remarkable man and one of our greatest and best-loved actors.”
Griffiths appeared in dozens of movies and TV shows, but will be most widely remembered as a pair of contrasting uncles — the hero’s grudging Muggle guardian in the Harry Potterseries, and flamboyant Uncle Monty in 1980s cult classic Withnail and I
Daniel Radcliffe said, “In August 2000, before official production had even begun on Potter, we filmed a shot outside the Dursleys’, which was my first ever shot as Harry. I was nervous and he made me feel at ease.
“Seven years later we embarked on Equus together. It was my first time doing a play but, terrified as I was, his encouragement, tutelage and humour made it a joy. In fact, any room he walked into was made twice as funny and twice as clever just by his presence. I am proud to say I knew him.