Kim Richards, a cast member of TV's "Real Housewives of Beverly Hills," has entered rehab to be treated for alcohol addiction, ET Online said Monday.

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The entertainment news program's Web site quoted multiple unnamed sources close to Richards as saying the former child actress has checked into an undisclosed treatment center.

Richards, 47, has appeared in the movies "Escape to Witch Mountain," "No Deposit, No Return," "Return from Witch Mountain," "The Whiz Kid and the Carnival Caper," "The Whiz Kid and the Mystery at Riverton," "The Car," "Assault on Precinct 13," "Meatballs Part II," "Tuff Turf," "Escape" and "Black Snake Moan."

She also guest starred on "Little House on the Prairie," "Diff'rent Strokes," "Alice," "Fantasy Island," "The Love Boat," "CHiPs," "Magnum, P.I.," "The Dukes of Hazzard" and "The Rockford Files."

She has been on "Housewives" since it debuted last year on Bravo.