Will Beall is an American screenwriter and former Los Angeles Police Department detective. He is best known for writing the scripts for Gangster Squad (2013) and the DC Extended Universe films Aquaman (2018) and Zack Snyder's Justice League(2021), and for developing the police TV series Training Day and Deputy, which were cancelled after a single season. Description above from the Wikipedia article Will Beall, licensed under CC-BY-SA, full list of contributors on Wikipedia.