Watch Dr. STONE Season 4 Episode 21 Online
“Our Dr. Stone” — Watch "Dr. STONE" Season 4 Episode 21 online in HD for free. Check streaming providers, cast, and episode details.
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Season 4 Episode 21 — Aired on Sep 4, 2025 • runs about 24 minutes.
Directed by Kayona Yamada.
Written by Kurasumi Sunayama.
Notable cast/guest names in this episode include Yusuke Kobayashi, Makoto Furukawa, Kana Ichinose, Manami Numakura.
This page includes 3 official still(s) (when available) plus legal availability links.
Looking for “watch Dr. STONE Season 4 Episode 21 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.
Synopsis
With the revival team captured, it's up to Luna and Chelsea to revive everyone when the time comes.
Stills
Cast
as Senku Ishigami (voice)
as Taiju Oki (voice)
as Yuzuriha Ogawa (voice)
as Kohaku (voice)
as Chrome (voice)
as Asagiri Gen (voice)
as Nanami Ryuusui (voice)
Episodes – Season 4
Trailer / clip
There�s no trailer available for this series right now.
