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."

I'll take my clothes off - whatever the job requires.

In spite of what Draco is like, I really like school, and I miss it a lot when I'm filming. I've a fair idea what I want to do for my GCSEs, I will definitely be doing music.

I really tried out for the part of Harry Potter, but they ended up picking me for the part of the enemy of Harry. Actually it is really fun playing the bad kid because it just has so many interesting qualities to it. And Daniel Radcliffe and I get along really well off set so it's really fun filming.

It's such a cool group of people that it [being a part of the DC Universe] feels like, for lack of a better analogy, being back on something like [Harry] Potter. We're working with a really tight, talented family.

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.

[Julian Albert] is a CSI investigator; a forensic expert with similar skills to Barry, which gives them a different relationship to, I think, anyone else that he works with, because they're sort of treading on each other's toes in their field of expertise.