In the series Manhattan, Katherine Waterston plays the role of Dr. Helen Prins, a brilliant physicist working on the Manhattan Project during World War II. The show explores the lives of the scientists and their families as they race against time to develop the atomic bomb. Waterston's portrayal of Dr. Prins is captivating, showcasing her intelligence, determination, and the moral dilemmas she faces. The series delves into the personal and professional struggles of the characters, highlighting the ethical implications of their work. Katherine Waterston's performance in Manhattan is praised for its depth and complexity, making the show a must-watch for history buffs and fans of intense dramas.