What is john nolan the rookie?

John Nolan is a character on the TV show "The Rookie," portrayed by actor Nathan Fillion. He is a 40-year-old man who decides to pursue a career as a police officer after a life-altering incident. Despite being the oldest rookie in the LAPD, John is determined to prove himself and make a difference in his community. Throughout the series, he faces challenges and obstacles as he navigates the world of law enforcement. John is known for his optimism, resilience, and dedication to serving and protecting others.