Where can I watch KILL BLUE for free?

Watch KILL BLUE 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 KILL BLUE are available on Castle?

Castle has all 1 seasons of KILL BLUE, with a total of 8 episodes streaming free in HD.

What languages is KILL BLUE available in?

On Castle, KILL BLUE is available in English, all in HD.

Who stars in KILL BLUE?

KILL BLUE stars Kaiji Tang, Ray Chase, Clifford Chapin, Kayli Mills.

When did KILL BLUE first premiere?

KILL BLUE premiered on 2026-04-11 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.

KILL BLUE

2026•8 epsIMDB 8.4

Crafted by None1, KILL BLUE Season 1 brings Kaiji Tang back alongside Ray Chase in a chapter that refuses to slow down. Set against Japan, the season unravels After an accident turns a legendary 39-year-old hitman into a 13-year-old, he goes undercover at a middle school, juggling both classes and missions. with action storytelling across 8 episodes, exploring themes of action in ways that elevate the series to new heights.