Bryan McAllister’s personal reference notebook
August 1, 2026Short & citedBlog
Civic Viewpoint.
A quiet encyclopedia with a personal desk
Kept by Bryan McAllister — short guides, clear facts, and the Canadian angle when it matters.
Screen & Stage • Series

Castle

"Castle" is an American crime-comedy-drama television series created by Andrew W.

Updated August 1, 20261 min readCited sources

Castle is an American crime-comedy-drama television series that aired on ABC from 2009 to 2016. It follows mystery novelist Richard Castle and detective Kate Beckett as they solve murder cases in New York City.

What it is

The series centres on Richard Castle, a bestselling mystery writer who joins NYPD detective Kate Beckett to investigate unusual homicides. Procedural crime stories are mixed with humour and a slow-burn romance between the two leads.

Main cast and characters

Nathan Fillion plays Richard Castle, Stana Katic plays Kate Beckett, and Susan Sullivan appears in a supporting role. Their professional partnership and evolving personal relationship drive much of the show's emotional arc.

Series story arcs and broadcast history

Alongside weekly cases, a major serialized plotline follows the unsolved murder of Beckett's mother. The show aired for eight seasons on ABC, totalling 173 episodes, and concluded on May 16, 2016.

In short

  • Castle follows bestselling author Richard Castle and detective Kate Beckett as they solve murders.
  • The series combines procedural crime stories with ongoing character development and romance.
  • A major plotline involves the unsolved murder of Beckett's mother.
  • The show ran for eight seasons on ABC and ended in 2016.
Canadian angle

The series aired internationally and remains available through major streaming services in some regions, making it familiar to Canadian viewers who follow U.S. network crime dramas.

Quick questions

What is Castle about?
It follows mystery novelist Richard Castle and NYPD detective Kate Beckett as they solve murders in New York City, while their partnership develops into a romance.
Who stars in Castle?
The series stars Nathan Fillion as Richard Castle and Stana Katic as Kate Beckett; Susan Sullivan is also among the main cast listed in major database entries.
How many seasons of Castle are there?
"Castle" has 8 seasons.

Sources

  1. Wikipedia — https://en.wikipedia.org/wiki/Castle_(TV_series)
    Supports: Series premise, creator, setting, major plotlines, and run dates.
  2. IMDb — https://www.imdb.com/title/tt1219024/
    Supports: Main cast, premise, series dates, and genre information.
  3. Wikipedia (French) — https://fr.wikipedia.org/wiki/Castle_(s%C3%A9rie_t%C3%A9l%C3%A9vis%C3%A9e)
    Supports: Beckett’s mother murder arc and its resolution in the final episode.
  4. TV Guide — https://www.tvguide.com/tvshows/castle/1030308536/
    Supports: Where to watch, season count, and storyline details.
  5. TVmaze — https://www.tvmaze.com/shows/68/castle/episodeguide
    Supports: Pilot premise and relationship between Castle and Beckett.
  6. IMDb — https://www.imdb.com/title/tt1219024/faq/
    Supports: Season count and series premise.