Castle poster
Where to stream

Castle

8.020098 seasonsTV-14TV SeriesDramaCrime

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.

ProducersTerence Paul Winter·Alexi Hawley

Where to watch

Amazon Prime VideoAmazon Prime VideoHuluHuluAmazon Prime Video with AdsAmazon Prime Video with AdsThe Roku ChannelThe Roku Channel
Availability shown for United States · rights vary by country

Seasons & Episodes

E1
XY (1)
Sep 21, 2015 7.5
E2
XX (2)
Sep 28, 2015 6.7
E3
PhDead
Oct 5, 2015 6.4
E4
What Lies Beneath
Oct 12, 2015 7.1
E5
The Nose
Oct 19, 2015 7.6
E6
Cool Boys
Nov 9, 2015 7.5
E7
The Last Seduction
Nov 16, 2015 7.4
E8
Mr. & Mrs. Castle
Nov 23, 2015 6.4
E9
Tone Death
Feb 8, 2016 7.1
E10
Witness for the Prosecution
Feb 14, 2016 6.3
E11
Dead Red
Feb 15, 2016 6.6
E12
The Blame Game
Feb 22, 2016 7.2
E13
And Justice for All
Feb 29, 2016 7.2
E14
The G.D.S.
Mar 7, 2016 6.5
E15
Fidelis Ad Mortem
Mar 21, 2016 7.4
E16
Heartbreaker
Apr 4, 2016 7.3
E17
Death Wish
Apr 11, 2016 7.1
E18
Backstabber
Apr 18, 2016 7.3
E19
Dead Again
Apr 25, 2016 7.5
E20
Much Ado About Murder
May 2, 2016 7.1
E21
Hell to Pay
May 9, 2016 7.4
E22
Crossfire
May 16, 2016 6.8

Cast

NFNathan Fillion
Nathan Fillion
Richard Castle
SKStana Katic
Stana Katic
Kate Beckett
MQMolly C. Quinn
Molly C. Quinn
Alexis Castle
JHJon Huertas
Jon Huertas
Javier Esposito
SDSeamus Dever
Seamus Dever
Kevin Ryan
SSSusan Sullivan
Susan Sullivan
Martha Rodgers
TJTamala Jones
Tamala Jones
Lanie Parish
TOToks Olagundoye
Toks Olagundoye
Hayley Shipton

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More from Stana Katic · Co-star actress

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Castle — streaming FAQ

Which OTT platform streams Castle?

Castle is streaming on Amazon Prime Video, Hulu and The Roku Channel in United States, and available to rent or buy on Amazon Video and Apple TV Store. It's not currently on Netflix.

Is Castle on Netflix?

No, Castle is not on Netflix in United States as of September 2026. It's currently on Amazon Prime Video and Hulu.

Is Castle on Amazon Prime Video?

Yes — Castle is included with an Amazon Prime Video subscription in United States as of September 2026.

Where can I watch Castle for free?

Castle is available to stream free (with ads) on The Roku Channel in United States.

How many seasons are in Castle?

Castle has 8 seasons in total (173 episodes). The series concluded in 2016.

Are all episodes of Castle out yet?

Yes — all 173 episodes across 8 seasons of Castle are out and available to stream.

Is there a Season 9 of Castle?

No — Castle ended after 8 seasons, so there is no Season 9.