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.

Most viewed episodes

Flowers for Your GraveS1E1Views: 225527
Hell Hath No FuryS1E4Views: 86469
Hedge Fund HomeboysS1E3Views: 67923
Nanny McDeadS1E2Views: 63671
A Chill Goes Through Her VeinsS1E5Views: 42539
Home Is Where the Heart StopsS1E7Views: 42193
Always Buy RetailS1E6Views: 34812
Little Girl LostS1E9Views: 33475
Inventing the GirlS2E3Views: 30337
GhostsS1E8Views: 20836