Watch Castle Online


This is page will only provide “legitimate” places to watch Castle online. Most of these sites will only work in the United States. However, iTunes does make the current episodes available for purchase within 72 hours after it airs in the U.S. Because the links constantly change (as new episodes become available, older episodes become unavailable for the free versions), we won’t embed links.

  • Watch on The main network site for Castle only makes the five most recent episodes available. ABC has made a significant change to the availability of episodes online. If you have the following: AT&T U-Verse, Cablevision Optimum, Charter, XFinity, Cox Communications, Google Fiber, Midcontinent, or Verizon FiO, you’ll need to log in to watch. Otherwise, you’ll have to wait eight days. For complete details read our article on it.
  • You can also sign up for Hulu Plus. For $7.99 a month, you get all of the episodes from the most current season as they become available. So, no matter if its episode 10, you can still watch all the previous episodes from that season. The free version of Hulu only gives you the five most recent episodes.
  • iTunes you can purchase a season pass that will allow you to download the episodes as they become available or you can purchase individual episodes.
  • also allows you purchase episodes.