ABC Photo Archives
Demi Moore
In 1982, 19 year-old Demi Moore landed her first big acting role on General Hospital, beating out 1,000 other actresses for the job. Her character, Jackie Templeton, had a red-hot romance with the GH hunk Luke Spencer, played by Anthony Geary. Still, Moore's future husband, Ashton Kutcher, couldn't have been too jealous of their onscreen chemistryhe was only 4 years old at the time. Moore left GH in 1983 and went on to star in Blame It on Rio and St. Elmo’s Fire, eventually landing her big break in Ghost. Her key to such a successful career? Self-discipline. “It's the key to everything,” she has said. “I believe it down to my core. If there is structure, you can do anything.”