As an actor, what's interesting is what's hidden away beneath the surface. You want to be like a duck on a pond - very calm on the surface but paddling away like crazy underneath.

I'm from Sweden. We don't wear clothes in Sweden.

Being followed is weird, that people want to discuss where I ate lunch or what I wear when I go to lunch... the private life is just gone.

It was such an amazing experience to be able to spend nine days on a boat with these Greenpeace people. Some of them were scientists and some were crew members working on the ship. Just to hear their stories, like what drew them to Greenpeace in the first place and what they've been through. Every single second of the day they work to save the planet, which makes me as an actor feel quite insignificant.

I wasn't like a Hollywood child actor - "I'm five! I can sing, I can dance, I can act! I wanna be a star!"

Life is crazy. You travel and you're busy and there's so much going on that it's important to have the moments where you can breathe and you can just be present with the person or the people that you're there with.

When I was four or five, I would organise my cars and my action figures. I needed some kind of structure, I think.