Josh Brolin marries Kathryn Boyd in a star-studded ceremony in North Carolina

Josh Brolin is a married man again.

The Oscar-nominated actor,48, married his model girlfriend Kathryn Boyd on Saturday, Brolin's rep confirmed to PEOPLE.

The couple used the hashtag #JBKBStuckTogether in order to capture all the photos from the wedding festivities like the bachelorette party, rehearsal dinner and the actual wedding. They reportedly got married in a romantic wedding ceremony in Cashiers, North Carolina, on Saturday.

Big names like Bradley Cooper, the groom's father, James Brolin, and wife Barbra Streisand, and Matt Damon, were also on tap for the wedding ceremony.

PHOTOS: The couple together through the years

The couple got engaged in the spring of 2015 after dating since about February. Boyd was formerly Brolin's assistant for nearly two years, before their relationship turned romantic and they were spotted kissing in Rome.

This is Brolin's third marriage. He was previously married to Diane Lane for eight years. They split in November 2013 and Brolin began dating his assistant shortly after. Brolin also has two children, son Trevor, 28, and daughter Eden, 22, with first wife Alice Adair.