updated 03/07/2011 AT 8:00 AM ET
•originally published 03/07/2011 AT 9:00 AM ET
True Blood babies on the way.
Sam Trammell, 40, and longtime girlfriend Missy Yager are expecting twins, his rep tells PEOPLE exclusively.
“The couple is thrilled and excited,” says a rep for Trammell.
After meeting in New York doing theater, the pair has been together for eight years. Yager has appeared on Mad Men and Boston Public, while Trammell resumes his role as Sam Merlotte in the HBO vampire series upon its return this summer.