The Rookie cast have become bona fide stars, including Nathan Fillion, Jenna Dewan, Eric Winter and Richard T. Jones, and fans are obsessed with their love lives - on and off camera. The ABC series follows the story of John Nolan, a recently divorced 40-something, who decides to pursue a career as a police officer at the Los Angeles Police Department after inadvertently helping to stop a bank robbery. The Rookie is based on the true story of William Norcross, a real LAPD officer who joined the department in his mid-40s after moving to Los Angeles in 2015.