Katherine Boyer Waterston is an American actress.She was born on March 3, 1980 at Westminster, London, England.She is the daughter of American parents named Lynn Louisa who is a former model and Sam Waterston who is an Oscar-nominated actor.Her sister is actress Elisabeth Waterston and her brother is director Graham Waterston.She graduated from the Loomis Chaffee School in 1998.She started her film carrer with Michael Clayton in 2007.She acts many film like Sleeping with Other People,Queen of Earth,Steve Jobs,Manhattan Romance,Fantastic Beasts and Where to Find Them,Alien: Covenant,Logan Lucky,The Current War.