Much more accessible than Isabel, the character whom she plays on Roswell, Katherine Heigl opens up on her short career which has allowed her to play opposite our own Gérard Depardieu: 

If you could, begin by telling me about your character on Roswell.

Isabel Evans is an alien teenager who goes through crises of identity. She discovers things about herself as she was on her planet. The weight of the secret she carries for so long and its consequences make her a very mature young woman for her age. But I believe that this year, she acquired a new wisdom. She discovers another perspective on the world which surrounds her, on her life and what is important for her.

And does that come from the answers she found in her past?

Yes. I also think that she feels more sure of herself, that she is more confident than before.

What is your alien power?

Oh, I have a very special power. It's called "dreamwalking." I can go into people's dreams. I can't take part in the dream, I can't change it, I can only sit in a corner and watch. It started as an inoffensive pastime, a kind of hobby (laughs). I entered the dreams of my friends when I was bored, but it became a thing which I could do even when people are awake. To contact them or find information, I can enter their spirit, their subconscious.

Is it difficult to play an alien?

Not really. I think that it was harder last season because I had to find my marks in order to know how to play my role, to find how far I had to go to emphasize the alien side. This season, I feel much more at ease. Showing the alien side, how very difficult that makes our life and how we're different from others. But the story has evolved in such a way that it's more about discoveries. Discoveries about our past, about our planet, and who we were.  We explore our powers, our affinities with the Earth, and we discover the other aliens we have to fight.

In fact, except for the fighting between aliens, it’s like the life of any other teenager.

Yes, I always said that the true hidden message of this series, it is that all kids feel like aliens at school at one time or another. You know, there's always this moment in life where you feel different, where you feel alone. Then, there is this stage where all you do is make discoveries. You discover your capacities, your talents, what you can and cannot do. It is, in fact, kind of a natural and rather pleasant progression.

You discovered your talents very early.

I really was lucky to discover a profession I love at such a young age. And moreover, I want to spend the rest of my life doing it.

How did you start in the acting profession?