Gregg DeGuire / WireImage
Gregg DeGuire / WireImage

Eric Christian Olsen is a married man after walking down the aisle with his longtime girlfriend, Sarah Wright.

RELATED: Drew Barrymore and Will Kopelman Are Married!

The "NCIS: Los Angeles" actor tied the knot with his actress partner over the weekend in a barn in Wyoming.

His father, Paul, performed the ceremony as 80 friends and family members looked on.

RELATED: See Eric Christian Olsen's Wedding Day Photo

Olsen tells People he had no doubts before the big day, saying, "You hear people talk about cold feet, but there was never a moment of doubt with Sarah because no one makes me happier, no one makes me laugh more, and I can't imagine a better mother for our future children."

RELATED: Angelina: Why Our Kids Want Us to Get Married