William Gaither "Billy" Crudup (born July 8, 1968) is an American actor. He is known for his roles in Almost Famous, Big Fish, Princess Mononoke, Watchmen, The Stanford Prison Experiment, Public Enemies and appeared as Dr. Allen in Justice League.
Crudup was born on July 8, 1968 in Manhasset, New York. He studied at Saint Thomas Aquinas High School, at University of North Carolina at Chapel Hill, and at New York University. He has one son with his ex-girlfriend Mary-Louise Parker.
- "Billy Crudup Biography". Yahoo! Movies. Retrieved 2008-05-21.