Watch Castle Online

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. Read More

Watch Castle online. Featuring Nathan Fillion and Stana Katic, Castle has 8 seasons and 173 episodes in total. It is available for streaming online in the UK on 10 services such as Apple iTunes and Google Play Movies. It is classified as Drama and Crime genre series and the average rating across the web is 7.997. The TV series was filmed in United States of America and was first aired on 2009. Read Less