| Castle | |
|---|---|
| Season 4 | |
 DVD cover | |
| Starring | |
| No. of episodes | 23 |
| Release | |
| Original network | ABC |
| Original release | September 19, 2011 – May 7, 2012 |
| Season chronology | |
The fourth season of American crime-comedy-drama television series Castle was ordered on January 10, 2011, by ABC.[1] The season aired from September 19, 2011, to May 7, 2012.[2] The fourth season initially contained 22 episodes, but on December 8, 2011, ABC ordered an additional episode, bringing the total episode count to 23 episodes.[3] Penny Johnson Jerald joined the cast as the new captain, Victoria "Iron" Gates for the fourth season.[4]
- ^ MacIntyre, April (January 10, 2011). "ABC and ABC Family renew Pretty Little Liars, Castle, Secret Life and more". Monsters and Critics. Archived from the original on February 22, 2014. Retrieved April 30, 2013.
- ^ "Episode Listings for Castle". The Futon Critic. Retrieved September 21, 2011.
- ^ Ross, Dalton (December 8, 2011). "'Castle' scoop: ABC orders additional episode – EXCLUSIVE". EW.com. Retrieved April 8, 2012.
- ^ Bryant, Adam (July 13, 2011). "Castle Exclusive: Meet Castle and Beckett's New Captain!". TVGuide.com. Retrieved July 13, 2011.