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Poster for Human Specimens

Human Specimens(2025)

Drama · Mystery · Crime

6.0(3)1 season5 episodes2025-12-19

Where to watch Human Specimens. Stream Human Specimens free in HD on Redflix—no sign-up required.

Professor Shiro Sakaki, a butterfly researcher, confesses to turning six young boys, including his own son Itaru, into "human specimens."

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Cast

Photo of Hidetoshi Nishijima

Hidetoshi Nishijima

Professor Shiro Sakaki

Photo of Somegoro Ichikawa

Somegoro Ichikawa

Itaru Sakaki

Photo of Rie Miyazawa

Rie Miyazawa

Rumi Ichinose

Photo of Aoi Ito

Aoi Ito

Anna Ichinose

Photo of Towa Araki

Towa Araki

Toru Shirase

Photo of Jyutaro Yamanaka

Jyutaro Yamanaka

Hikaru Akabane

Photo of Kodai Kurosaki

Kodai Kurosaki

Sho Ishioka

Photo of Leo Matsumoto

Leo Matsumoto

Ao Fukazawa

Photo of Ikuho Akiya

Ikuho Akiya

Dai Kuroiwa

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