Release the doves!

Perfect Couples star David Walton married actress Majandra Delfino (of cult TV show Roswell) in Miami, Fl. on March 19, his rep confirmed to

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As about 200 guests looked on, Walton, 32, and Delfino, 30, exchanged their "I do's" at Trinity Cathedral; after the ceremony, the party moved to the members-only surf club for a reception, dinner and poolside after party.

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Among Delfino's bridesmaids: Katherine Heigl, a fellow Roswell alum. A source tells Us the former Grey's Anatomy star, 32, gave a funny speech-- and even jumped in the pool at the after party! Heigl's hubby Josh Kelley and actress Ali Larter were also guests. 

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The unfussy celebrating didn't end there: in lieu of the traditional champagne toast, wedding guests did a shot of tequila to cheer the newlyweds; the revelry lasted until around 4:00 a.m.

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