One of my first things I was fascinated with when I got on set was how does Grant do all this Flash stuff? it looks so good as the end product, but how does the special effects team work? How does the visual effects team work?

I have met a couple of six-year-olds who were apparently quite excited to meet me - before they actually met me. And when they actually met me they ran behind their parents' legs and cowered for shelter.

I'm terrible at texting people back. It takes me, like, three days. I'm not a big phone person.

Going online and asking questions is the best way to learn.

What a house. Turns out they're doing OK, the Malfoy's. However, the interior decorating leaves a lot to be desired. And needless to say, Voldemort isn't the greatest houseguest.

It's like in politics: You can have great intentions for the world, but if you're not a good speaker and if you're not the sort of person that people can intimately link with, then it makes it very easy to say, "Well, they're not a nice person."

People always tell me I'm nothing like my character. Well, hopefully not! He's a character who's very defined. He was purposefully written by Jo Rowling as very one-dimensional in the first few books, because you're supposed to hate him.