Where can I stream Castle in US?

Castle streams on Britbox Apple TV channel, BBC Select Apple Tv channel in US.

Where can I stream Castle in CA?

Castle streams on Britbox Apple TV channel, BBC Select Apple Tv channel in CA.

In US, Castle is streaming on Britbox Apple TV channel, BBC Select Apple Tv channel.

Country	Stream (subscription)	Free	Free with ads	Rent	Buy
US	Britbox Apple TV channel BBC Select Apple Tv channel	Amazon Prime Video	The Roku Channel	—	—
CA	Britbox Apple TV channel BBC Select Apple Tv channel	Amazon Prime Video	—	—	—

Availability data via JustWatch through TMDB. Listings change often — last refreshed 3 Oct 2026.