The Rookie is an American police procedural television series created for ABC by Alexi Hawley. The series follows John Nolan, a man in his forties, who becomes the oldest rookie at the Los Angeles Police Department. The series is produced by ABC Studios and Entertainment One; it is based on real-life Los Angeles Police Department officer William Norcross, who moved to Los Angeles in 2015 and joined the department in his mid-40s. The series stars Nathan Fillion, Alyssa Diaz, Richard T. Jones, Titus Makin Jr., Mercedes Mason, Melissa O'Neil, Afton Williamson, Mekia Cox, Shawn Ashmore and Eric Winter. The Rookie premiered on October 16, 2018. The first season ran until April 16, 2019. The second season ran from September 29, 2019, to May 10, 2020. In May 2020, ABC renewed the series for a third season which premiered on January 3, 2021.