From WENN.com

The NCIS: Los Angeles actor tied the knot with his actress partner over the weekend (22-24Jun12) in a barn in Wyoming.

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

Olsen tells People.com 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.""