Who is the actress that plays the mom in the Lego commercial?

The actress who plays the mom in the LEGO commercial is typically Kelly Marie Tran. She gained recognition for her role in "Star Wars: The Last Jedi" and has been featured in various ads, including those for LEGO. Keep in mind that different LEGO commercials may feature different actresses, so it's best to specify a particular ad if you have one in mind.