tells PEOPLE his son's 4th birthday party was "great," while giving Cartwright praise for her hard work.

Gabby’s Dollhouse MEOWseum Comes to The Discovery Children’s Museum ...

On Thursday, April 10, the Full House alum, 61, celebrated his son Billy's 7th birthday — and his wife Caitlin McHugh, who welcomed him into the world — with a sweet post via Instagram.

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Las Vegas(KLAS)-Brittany Deusenberry, Presenter II Arts and Humanities at Children’s Discovery Museum along with Gabby from Gabby’s Dollhouse joined Las Vegas Now with all the details on Gabby’s ...