The Rookie star Lisseth Chavez, who plays Officer Selena Juarez in the ABC hit drama series, has teased that season 7 will contain an episode that is on the darker side. Chavez joined the show in a recurring role in The Rookie season 5, before being promoted to a main role the following year. Her character trained under John Nolan, demonstrated good instincts but unorthodox methods and encountered many disturbing experiences over the show. But things look set to get even darker and more complex in season 7.