Actor PATRICK DEMPSEY suffered crippling bouts of depression in his youth when his acting career failed to take off. The Grey's Anatomy star, 41, was convinced he was tipped for Hollywood stardom after his initial success in hit 1987 comedy Can't Buy Me Love. But the actor found it difficult to stay positive when he failed to land any more high profile roles. Dempsey's marriage to his former manager Rocky Parker - a woman 26 years older than him - also collapsed and it led to a period of severe depression for the star. He says, "It was a very difficult time. I was insecure. I felt I was no good. "It took me two days to get psyched and it was very hard to stay positive. There were years when I wasn't working and people didn't care about me." Dempsey - who divorced Parker in 1994 after seven years of marriage - has since re-married and had three children with make-up artist Jill Fink. He is now enjoying a career revival after being cast in hit U.S. drama Grey's Anatomy.