Danny Masterson wed longtime girlfriend Bijou Phillips in the Irish countryside on Tuesday, his rep confirms to Us Weekly.
Dating for eight years, the That 70s Show actor, 35, and Almost Famous starlet, 31, tied the knot at an Irish castle in front of a small group of friends and family.
Model-actress Phillips (the daughter of the Mamas and the Papas' John Phillips and the half-sister of Chynna and Mackenzie Phillips) wore custom Zac Posen, while Masterson suited up in Albert Hammond Jr. for Confederacy.
Danny's brother Chris served as best man, with high-profile guests that included actors Ben Foster, Mike Pena and Ethan Suplee.
One A-list pal not in attendance was Masterson's That 70s Show costar Ashton Kutcher. Kutcher, 33, helped celebrate his friend's nuptials with a wild bachelor's weekend in San Diego Sept. 23 - 24. A source confirms to Us Weekly that Kutcher, the Masterson brothers and other friends were in San Diego -- partying at danceclub Luxx and the Hard Rock Hotel -- to celebrate Danny's upcoming wedding.
As reported in Us, it was an early-morning afterparty at Kutcher's suite at the Hard Rock that he met local girl Sara Leal, with whom he had a torrid one-night stand.
Kutcher told Leal and other young women at the bash that he was separated from wife of six years Demi Moore.
"I'm a normal 22 year-old girl, and I spent the night with someone who I thought was separated," Leal later told Us Weekly. "If I had known he was happily married, none of this would have ever happened."