The actor starred on 'Dawsonβs Creek' in the early 2000s as Pacey, a small town kid in the fictional town of Capeside, Mass. before taking on the role of Dr. Max Bankman in 'Doctor Odyssey'
"We saw it as an unforgettable celebration, a massive party filled with laughter, and memories shared with our closest family and friends," the bride tells PEOPLE
"I know this probably isn't the cool thing to say but there are so many other things that are so important in the world right now," Munn said of the upcoming mission