Rakuten Viki
E1Episode 1
Where to watch
Seasons & Episodes
E1
E2Episode 2
E3Episode 3
E4Episode 4
E5Episode 5
E6Episode 6
E7Episode 7
E8Episode 8
E9Episode 9
Cast · Directed by Ko Kanai
MT
Mitsuki Takahata
Kokoro Yamihara
KT
Kei Tanaka
Toramatsu Asada
KM
Keita Machida
Keisuke Kagami
KA
Kumiko Aso
Iori Yamihara
KY
Kotaro Yoshida
Kaizo Yamihara
SK
Shinya Kote
Yukio Yoyozuka
FU
First Summer Uika
Matsuri Igarashi
YI
Yuki Inoue
Ren Yamihara
RS
Ryosuke Sota
Daigoro Igarashi
SO
Seiya Osada
Seiya Niwatsuki
SN
Shinya Niiro
Hajime Minamijuji
YS
Yoshi Sakō
Genji Niwatsuki
More from Mitsuki Takahata · Lead actress
Mr. Kinpachi in Class 3B
1979 · 7.0
Gochisousan
2013 · 8.5
5 Centimeters per Second
2025 · 7.9
Daddy Sister
2016 · 9.5
Dear Radiance
2024 · 8.9
Strategist KANBE
2014 · 9.4
Monster
2023 · 7.9
Golden Kamuy -The Hunt of Prisoners in Hokkaido-
2024 · 7.8
Love That Makes You Cry
2016 · 8.1
Kokuho
2025 · 7.9
See all fromMitsuki Takahata
More from Kei Tanaka · Co-star actor
Doctor-X: Surgeon Michiko Daimon
2012 · 7.7
AIBOU: Tokyo Detective Duo
2002 · 7.5
Gokusen
2002 · 8.0
Doubutsu Sentai Zyuohger
2016 · 6.5
Midnight Diner
2009 · 8.2
Ohisama
2011 · 9.0
Cold Case: Door of Truth
2016 · 8.2
Kingdom 5: The Clash of Souls
2026 · 8.5
Special Rescue Exceedraft
1992 · 8.6
Strategist KANBE
2014 · 9.4
See all fromKei Tanaka
More from Ko Kanai · Director
More like this
Galileo
2007 · 8.2
Doctor-X: Surgeon Michiko Daimon
2012 · 7.7
AIBOU: Tokyo Detective Duo
2002 · 7.5
The Apothecary Diaries
2023 · 8.7
Monogatari
2009 · 8.1
Monster
2004 · 8.5
Classroom of the Elite
2017 · 8.4
BEASTARS
2019 · 8.4
Black Butler
2008 · 7.8
Alice in Borderland
2020 · 8.1
Summer Time Rendering
2022 · 8.2
Hell Girl
2005 · 8.2
Unknown — streaming FAQ
Which OTT platform streams Unknown?
Unknown is streaming on Rakuten Viki in United States. It's not currently on Netflix.
Is Unknown on Netflix?
No, Unknown is not on Netflix in United States as of November 2026. It's currently on Rakuten Viki.
Is Unknown on Amazon Prime Video?
No, Unknown isn't on Amazon Prime Video in United States right now. It's on Rakuten Viki instead.
Where can I watch Unknown for free?
Unknown is available on Rakuten Viki in United States, but you'll need an active subscription — there's no free option right now.
How many seasons are in Unknown?
Unknown has 1 season in total (9 episodes). The series concluded in 2023.
Are all episodes of Unknown out yet?
Yes — all 9 episodes across 1 season of Unknown are out and available to stream.
Is there a Season 2 of Unknown?
No — Unknown ended after 1 season, so there is no Season 2.
