ET confirms that David Duchovny has entered a rehabilitation center for sex addiction. 

"I have voluntarily entered a facility for the treatment of sex addiction," the "Californication" actor said in a statement to ET delivered by his lawyer, Stanton "Larry" Stein. "I ask for respect and privacy for my wife and children as we deal with this situation as a family."

The 48-year-old "X-Files" star has been married to actress Téa Leoni since 1997 and the couple has two children together. 

There is no statement from Leoni, per her publicist. Showtime, which airs "Californication," tells ET, "All of us at Showtime wish David and his family the best during this very private time."