#14 - David Duchovny and Tea Leoni

"X Files" actor David Duchovny, 48, and his actress wife, Tea Leoni, 42, say they have officially separated.

The announcement came after Duchovny, who currently stars a writer on the hit TV series "Californication," was admitted to a rehab center for sex addiction treatment.

Later rumors surfaced that Duchovny's problems began after he discovered text messages on his wife's phone that suggested she was having a relationship with actor Billy Bob Thornton, 53. Thornton, who has been married five times, once to actress Angelina Jolie, met Leoni earlier this year during filming for the comedy "Manure."

Since the announcement, the couple, who have been married 11 years, have been seen attending events together with their daughter, Madelaine West, 9, and son Kyd, 6.