Craig Titley is an American screenwriter. His work includes Cheaper by the Dozen, Scooby-Doo, and Percy Jackson & the Olympians: The Lightning Thief. He graduated from Mattoon High School, Eastern Illinois University, and the University of Southern California with a master's degree. He got his doctorate at Pacifica Graduate Institute. Description above from the Wikipedia article Craig Titley, licensed under CC-BY-SA, full list of contributors on Wikipedia.