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It's a boy!

Mark-Paul Gosselaar and his wife Catriona McGinn welcomed their very first child together around noon on Monday, September 30 in Los Angeles, People reports.

Pics: Celebs and Their Cute Kids!

The new addition, named Dekker Edward Gosselaar, joins Ava Lorenn, 7, and Michael Charles, 9 -- Gosselaar's children from a previous marriage.

"We are overjoyed with the new addition to our family. We are madly in love with our little boy," the Franklin & Bash star, 39, told the magazine. "He is healthy and just perfect -- all we could ask for."


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