You'd be hard-pressed to find an actor who isn't a sex symbol somewhere.

It's funny how you get a bit older and become more accepting of things. When you're in your twenties, you're skeptical of everything. I definitely felt like that.

One of my favorite things about my life is that I have the same group of friends that I grew up with. I love them so dearly, and we give each other a hard time.

Nobody sane wants just to be famous.

Throughout Ireland, there's a brilliant community of filmmakers and actors, and I guess there was always a lure to do some work in the place where I come from.

No matter what happens in my career, I've always got 'The Fall.'

I'm still not aware that I'm good looking.

Addiction is a terrible thing.

I don't like my physique. Who does?

Everyone likes a bit of competition.

My dad was a keen actor when he was young; my auntie is heavily involved in amateur dramatics back in Northern Ireland, and my great aunt was a woman called Greer Garson.

I'm amazed if people are happy in their own skin.

I'd been auditioning for parts for years. I never got any better at it. I'm crap at auditions. I know there are people who can walk into those rooms and make those lines sing on the page and get the job immediately. I wasn't one of them. I'm still not one of them.

I guess I'm just lucky with my genes.

I defy anyone to watch interviews with Ted Bundy and not be taken by him. He was very handsome and charming and extremely intelligent and, you know, that can exist.

When I was younger, I thought maybe one day I'd be involved in sport in terms of career.

I've always needed to bulk up, so until the modeling took off I was ramming Big Macs down my throat and doing plenty of bodyweight work. I'm over the Big Macs now, but I'll still drop down and do my press ups whenever I find the time.

I can't really do the running on hard ground that I used to do. Instead I go swimming as often as possible.

Fairytales are stories that span every generation and they've been around for a long time.

It's funny when you know you're playing two characters and you're aware of how you have to play each one into your performance of the other. You're constantly at the back of your mind thinking and it all gets a bit confusing.

They do very classy, sexy television in the U.S. - and they pay a lot more, so there's always that draw!

I think when romantic comedies are done well, it's a great genre. 'When Harry Met Sally' is kind of a benchmark for me, but I'm very happy to admit that I love 'Pretty Woman.' I do! It's a great film, and so is 'Sixteen Candles.' I was a big John Hughes fan - still am. I have moments where I have to watch a Hughes film.

I've never felt massively satisfied from standing there while someone takes my photograph. It's never given me a thrill.

Being a leading man can come in many different forms.

I very much feel like I'm part of the makeup of 'Once Upon a Time.'

Love from the fans is flattering. That's what makes the show. They are so essential to everything involved with 'Once Upon a Time.'

There are so many ways to make a living that don't involve hiding in bushes opposite houses of 18-year-old girls with a camera in your hand.

I was a skinny guy growing up, and I still feel like that same skinny kid.

I didn't do particularly well with girls at school. I was very shy. I'm not saying that was the only reason I didn't do well with them, but I just didn't.

I love fatherhood.

It's a strange environment, being hounded. The paparazzi are cretins.

I could eat 10 packs of Hula Hoops a day and not think about it.

If you are a skinny, baby-faced teenager, the last thing you want to hear is that you're cute.

I like playing characters who are fractured, broken. I find that more relatable, for some reason. I don't feel that I'm like that myself by nature, but there's just something that you can really grab hold of if people have a darkness in them, I think.

I read a lot about serial killers.

Although just being employed as an actor is a big thing, I'm not sure I'd be satisfied playing the same character for 30 years; it's not why I want to do this for a living.

I'm a fairly worldly guy.

I've never read anything set in Belfast that doesn't involve the Troubles or something senseless over a flag.

Modelling doesn't hold you back in L.A. at all.

I think my lesson is to back yourself once you've been given a job. Far too often, I've been given a job and then doubted why I'm there.

Just by going fast enough, you can ride on water with a motorcycle.

My hair was falling out so I got in the habit of wearing a hat. And I didn't like baseball caps so I got a beret.

I went to the library - and this was before the Internet - and I searched for a career that was creative, would not fall into a routine, involved problem solving and making things. It also had to be dynamic. I came up with special effects.

Science isn't just for guys in lab coats, you know? It's for anybody who wants to do a good job of understanding and investigating the world.

If I had one word to describe how I feel at never having to work with co-host Adam Savage again it'd be relief.

We're not friends - in fact, we pretty much as a rule irritate each other. But we've learnt to embrace it and use it as a strength... the other guy's always seeing something from the opposite pole.

I pretty much learned not to fight with it a long time ago and let it do what it likes to do. Otherwise, my shaving techniques are pretty mundane. I tend to do it in the shower because it makes the bristles soft and keeps the razor from building up the hairs inside it, and the mustache is dealt with with scissors.

As it turns out, one of the biggest choices we have doing the show is deciding the tangents we are allowed to take, the stuff that we see along the way. We're allowed to explore the world at large on these things; the urban-legend aspect of it is just kind of an excuse.

I've run several of my own small businesses in my life.

There are a lot of scientists or other people who can be very skeptical or rational within their field, but they may well not do that in other aspects of their lives, when it comes to things like religion, or what have you. People have this amazing gift for being selective with their curiosity and skepticism.