Daniel Wallace is a comic book expert, sci-fi sage, and lifelong geek. Author or coauthor of more than two dozen books, including "The Jedi Path, The Art of Superman Returns, DC Comics Year by Year, The Marvel Encyclopedia," and the New York Times bestselling "Star Wars: The New Essential Guide to Characters," he has alternately found himself trading tense questions with Kevin Spacey about head-shaving and banging out three thousand trivia questions for Star Wars Trivial Pursuit. Other universes he has worked with include "Smallville, Indiana Jones," and "Supernatural." He lives in Minneapolis.