updated 06/20/2010 AT 10:00 AM ET
•originally published 06/20/2010 AT 9:15 PM ET
Possibly least shocked of all at Calista Flockhart and Harrison Ford’s surprise wedding is her Brothers and Sisters costar Gilles Marini.
“Those two definitely belong to each other. I’m so happy for them.” Marini, 34, tells PEOPLE of the couple’s recent (and unannounced) nuptials.