Star Trek has always been a family affair, and some Trek actors have starred alongside their real-life children. Since the camaraderie of the crew of the USS Enterprise on Star Trek: The Original Series, the franchise has always celebrated found families and the bonds formed between shipmates on long space voyages. Star Trek has largely been geared toward families, with its stories of fun space adventures and moral lessons. Several Star Trek actors also found love with others involved in the franchise, most notably Star Trek creator Gene Roddenberry and his wife Majel Barrett-Roddenberry.
https://screenrant.com/star-trek-actors-children-tv-movie-appear/