Born in Los Angeles, California, Louisa Jacobson Gummer, better known as Louisa Jacobson, is an American actress. In 2017, Jacobson made her professional acting debut as Mary Dalton in Yale Repertory Theatre's production of Nambi E. Kelley's "Native Son." In 2019, she starred as Juliet in The Old Globe's production of "Romeo and Juliet." In 2022, Jacobson made her television debut starring in Julian Fellowes' HBO period drama series "The Gilded Age." In 2024, Louisa Jacobson served as the assistant director to Michael Breslin for the Off-Broadway play "Invasive Species."