Katherine Boyer Waterston is a British-American actress who has starred in films including Fantastic Beasts and Where to Find Them (2016) and Steve Jobs (2015). The daughter of actor Sam Waterston and model Lynn Louisa Woodruff, she studied acting at NYU's Tisch School of the Arts and made her film debut in 2007 with roles in Michael Clayton and The Babysitters. She portrayed Chrisann Brennan in Steve Jobs (2015), and went on to star as Tina Goldstein in Fantastic Beasts and Where to Find Them (2016) and its sequels. Her other film roles include Alien: Covenant (2017), Logan Lucky (2017), The Current War (2017), Mid90s (2018), Amundsen (2019), The World to Come (2020), Fantastic Beasts: The Secrets of Dumbledore (2022), Babylon (2022), The End We Start From (2023), and Fackham Hall (2025).