Castle (2009) is a Drama, Crime series that follows after a serial killer imitates the plots of his novels, successful mystery novelist Richard "Rick" Castle receives permission from the Mayor of New York City to tag along with an NYPD homicide investigation team for research purposes. Currently, you can watch Castle on Amazon Prime Video, Hulu, Philo, Amazon Prime Video with Ads. Streaming availability may vary by country and platform over time. It has a user rating of 8.0 out of 10 from 2,050 votes. Fans of drama series may also want to explore similar titles below.