Gilford, 30, and Sanchez, 36, met in early 2010 co-starring on the failed ABC pilot The Matadors. He popped the question in November 2011. The couple are also expecting their first child early next year.
This is the first marriage for Gilford and the second for Sanchez, who was previously married to writer and director Zach Helm.
Best known for playing Matt Saracen on Friday Night Lights, Gilford most recently starred in the short-lived drama The Mob Doctor. Sanchez, who played Nikki on Lost, currently co-stars on A&E's The Glades.