Mary Cathleen Collins (born November 20, 1956), better known as Bo Derek, is an American film and television actress, model, and sex symbol, known for her role as Jenny Hanley in the 1979 comedy film 10. However, Derek's film career soon faltered; her later films, including, Bolero (1984) and Ghosts Can't Do It (1989), were poorly received by both the public and critics. Today she makes only the occasional film, television or documentary appearance.
She made the first of many appearances in Playboy, starting with the March 1980 issue.
On an audition trail, Bo Derek met director John Derek, 30 years her senior. John filed for divorce from his wife, actress Linda Evans, and John and Bo moved to Germany to avoid John being charged with statutory rape under U.S. law due to Bo's being only 16. The couple returned to America soon after Bo's 18th birthday, and they married in 1976. They remained married until his death in 1998.
Since 2002, she has been involved with actor John Corbett.