Watch Castle Online Episodes

This site allows you to watch Castle episodes online. Every episode from the Pilot to the newest aired episode can be watched on this website. To watch an episode online, just click on the season and select the episode you want to watch. If you enjoy watching Castle online, then we hope you check out our sister streaming sites to watch other shows episodes online as well.

Castle - Season 3

1. Episode 1 - A Deadly Affair
2. Episode 2 - He's Dead, She's Dead
3. Episode 3 - Under the Gun
4. Episode 4 - Punked
5. Episode 5 - Anatomy of a Murder
6. Episode 6 - 3XK
7. Episode 7 - Almost Famous
8. Episode 8 - Murder Most Fowl
9. Episode 9 - Close Encounters of the Murderous Kind
10. Episode 10 - Last Call
11. Episode 11 - Nikki Heat
12. Episode 12 - Poof! You're Dead
13. Episode 13 - Knockdown
14. Episode 14 - Lucky Stiff
15. Episode 15 - The Final Nail
16. Episode 16 - Set Up (Part 1)
17. Episode 17 - Countdown
18. Episode 18 - One Life to Lose
19. Episode 19 - Law & Murder
20. Episode 20 - Slice of Death
21. Episode 21 - The Dead Pool
22. Episode 22 - To Love and Die in LA