On the eve of the big day the groom, Allen and Brendan Hines performed for guests, while he also shared a shot of himself and his bride-to-be standing by a bus with 'Almost Married' painted on the back.
"It begins..." he wrote.
Pretty Little Liars star Troian met The Suits actor in 2009 while they were co-stars in the play Equivocation. The couple became engaged in January, 2014.
Adams and Bellisario went out of their way to keep the location and other details of the wedding top secret, but reports suggest guests were asked to donate to the David Suzuki Foundation and SickKids Hospital in lieu of gifts.
The wedding comes a month after Troian and her Pretty Little Liars castmates, Ashley Benson, Lucy Hale, and Shay Mitchell, bid a fond farewell to the show that made them stars.
The quartet play the main characters in the hit U.S. TV show, which is coming to an end next year (17), after seven seasons. After shooting the finale on 26 October (16), the actresses took to their social media pages to express their love for their co-stars and the programme that made them famous.
Troian posted a snap of her dressing room with posters of Patti Smith and Lolita on the wall, adding that packing it up was tough, writing, "Goodbye room (and my home for 7 years). Be good to the next girl. Whoever she is."