According to Hello! magazine, the couple exchanged vows at a ceremony which took place at Alisal Ranch and Resort in California's Santa Ynez Valley.
The "Downton Abbey" star said their D-day had the best of both Ireland, his home, and California.
While the bride wore a Monique Lhuillier gown with Yves Saint Laurent heels, the groom sported a deep navy Armani suit with burgundy bowtie.
Blair Herman, 32, talked about her love for her husband.
"As soon as I met him there was a sense of ease and comfort, that I knew marriage would be uncomplicated and beautiful with him," the "The People v OJ: American Crime Story" actor said.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)