Griffiths appeared in numerous films, plays and television shows over the years, but for a lot of people will always be known best as Uncle Vernon Dursley from the Harry Potter films. For me personally, I think I'll always remember him best as Dr. Albert S. Meinheimer in The Naked Gun 2 1/2 (I it watched a bunch of times when I was a kid for some reason).
Here's Griffiths and Harry Potter co-star Danielle Radcliffe discussing their roles:
The Independent shares a statement form Radcliffe:
“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.”
Other film credits include: Superman II, Chariots of Fire, Gandhi, Gorky Park, King Ralph, Guarding Tess, Sleepy Hollow, The HItchhiker's Guide To The Galaxy, Pirates Of The Caribbean: On Stranger Tides, and Hugo.
Griffiths reportedly died at University Hospital Coventry.