Where can I watch B: The Beginning for free?

Watch B: The Beginning free in HD on Castle. Download the Castle App to stream all seasons and episodes with English audio — no subscription, no signup needed.

How many seasons of B: The Beginning are available on Castle?

Castle has all 1 seasons of B: The Beginning, with a total of 12 episodes streaming free in HD.

What languages is B: The Beginning available in?

On Castle, B: The Beginning is available in English, all in HD.

Who stars in B: The Beginning?

B: The Beginning stars Asami Seto, Hiroaki Hirata, Yûki Kaji, Hiroki Tôchi.

When did B: The Beginning first premiere?

B: The Beginning premiered on 2018-03-02 and is now streaming free on Castle.

Is the Castle App safe to download?

Yes. The Castle APK is a verified safe file. It requires only basic Android permissions and does not need root access. Compatible with Android 6.0 and above.

B: The Beginning

2018•12 epsIMDB 7.2

Crafted by Kazuto Nakazawa, B: The Beginning Season 1 brings Asami Seto back alongside Hiroaki Hirata in a chapter that refuses to slow down. Set against Japan, the season unravels Genius investigator Keith Flick rejoins the royal police force just as serial killer "B" emerges. Mysterious youth Koku may be an ally, or a target. with cartoon storytelling across 12 episodes, exploring themes of cartoon in ways that elevate the series to new heights.