Film Having begun to watch my way through the Harry Potter films (I'm only halfway through Chamber for various reasons), I just had to watch the above Buzzfeed video which I won't spoil but is endlessly amusing not least because Hermione is clearly the most powerful wizard yet Potter's the most famous. I spent the entire duration trying to work out where I'd heard the voice over before. Sounds a bit like Roger Allam, but a glance towards the credits underneath indicates it's Kevan Brighting. Kevan Brighting the IMDb informs us played the Bank Computer in Doctor Who's Time Heist. Uncredited. You can't turn it off.