Castle
Created by Andrew W. Marlowe
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.
Watch trailerWhere to watch in 🇺🇸 United States
Top cast
Nathan Fillion
Richard Castle
Stana Katic
Kate Beckett
Molly C. Quinn
Alexis Castle
Jon Huertas
Javier Esposito
Seamus Dever
Kevin Ryan
Susan Sullivan
Martha Rodgers
Tamala Jones
Lanie Parish
Toks Olagundoye
Hayley Shipton
Frequently asked questions
Where can I watch Castle online?
As of September 20, 2026, Castle is available to stream on Amazon Prime Video, Hulu, Philo, Amazon Prime Video with Ads, and The Roku Channel in United States. Use the country selector above to check availability in other regions — streaming rights are licensed per country, so catalogues differ.
Is Castle on Netflix?
No — Castle is not currently on Netflix in any of the countries we track. In United States it streams on Amazon Prime Video, Hulu, Philo, Amazon Prime Video with Ads, and The Roku Channel instead.
Can I rent or buy Castle online?
Yes. In United States, Castle is available for digital purchase on Amazon Video, Apple TV Store, Google Play Movies, and Fandango At Home.
In which countries can I stream Castle?
As of September 20, 2026, Castle is included with a streaming subscription (or free with ads) in Argentina, Brazil, Canada, Chile, Colombia, Germany, Italy, Mexico, Portugal, Russia, Spain, United Kingdom, and United States, among the countries we track.
Streaming availability last checked on September 20, 2026. Catalogues change frequently — data from TMDB and JustWatch.
