Danny Masterson and Bijou Phillips, who have been together more than eight years, tied the knot on Tuesday before an intimate group of family and friends.
The wedding took place in the Irish countryside, their rep confirms to People.
In a nod to Masterson's Irish heritage, the couple had a formal wedding at a private castle, the picturesque setting of Tipperary serving as their backdrop.
Masterson proposed to Phillips, his co-star in several films, in 2009.
For you celebrity fashion followers, Bijou Phillips, 31, wore a custom Zac Posen gown and Masterson, 35, chose to wear Albert Hammond Jr. for Confederacy.
The groom's brother Chris Masterson served as best man and guests included actors Ben Foster, Mike Pena and Ethan Suplee and artist Gottfried Helnwein.
Congratulations to the newlyweds!