Alexandra Wyman / WireImage 1 / 14
Alexandra Wyman / WireImage 1 / 14

Actor Danny Masterson and his long-term girlfriend, actress Bijou Phillips, have wed in Ireland.

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The stars, who appeared together in movies including "Made for Each Other" and "The Bridge to Nowhere," married at a private castle in Ireland's Tipperary countryside on Tuesday, in honor of Masterson's Irish heritage.

Phillips wore a Zac Posen bridal gown as she walked down the aisle in front of close family and friends, including actors Ben Foster, Mike Pena and Ethan Suplee, their representative confirms to

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Masterson's actor brother Chris served as best man.

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The pair, who have been dating for six years, became engaged in 2009.