"The Roswell Incident? I do believe it. How can a rumor be perpetuated for so long without any proof? I’m convinced that other forms of life exist: we are not alone in the universe."

Katherine Heigl is convinced of the existence of an "extraterrestrial" retrieved after the crash of a UFO, July 4, 1947, in Roswell, New Mexico. Mystery or fraud? The phenomenon always fascinates…Katherine is also excited about Isabel, the alien that she portrays in the series "Roswell."

"She and I look alike. Isabel is calm and thoughtful. On the other hand, I am more carefree. We haven’t had any other choice but to grow up fast, very fast."

Too fast?

"I began so young in modeling. But later, that helped me in becoming an actress: I was already used to the lights and cameras."

She debuted with Gérard Depardieu

Katherine does not renounce the little girl who still remains in her. "I still have the blanket I had when I was a baby," she admits. If there were more people like me, or who continued to suck their thumb, there would be less war. At least, that’s my philosophy."

At 14, she proved herself in the American version of "My Father, the Hero," with Gérard Depardieu. One year later, she was beside Steven Seagal in "Under Siege 2." "I learned martial arts and kickboxing. But I’ve forgotten all of it."

In 1999, she was Jade in "Bride of Chucky," but Isabel is the role she prefers. The numerous special effects, demonstrating Isabel’s supernatural talents, don’t frighten her. "At first, it was bizarre. Now, I have the feeling of really having her powers," says Katherine. As to the role of her dreams: "I would have loved to interpret Juliet. But other actresses have really played that character."