Goto Yuichi (played by Masaki Suda) is a protagonist in Cube.
An engineer who overcomes paralyzing fear and past trauma to become the group's strategic thinker and moral anchor, ultimately sacrificing his own escape to save Uno and Kai. Kai Asako (played by Anne Watanabe) is a protagonist in Cube.
A mathematics teacher who deciphers the trap logic using prime numbers and Cartesian coordinates. Revealed at the end to be a cybernetically monitored observer of the experiment. Ochi Shinji (played by Masaki Okada) appears in Cube.
A freeter who turns violent under pressure, murdering Ando and deliberately luring the group into traps before being killed by the Cube's mechanisms. Uno Chiharu (played by Hikaru Tashiro) appears in Cube.
A traumatized middle school student who survives by memorizing room sequences and calculating safe paths, ultimately escaping the Cube with Kai. Ide Hiroshi (played by Takumi Saitoh) appears in Cube.
A pragmatic mechanic who initially leads the group through the maze, using decoys and careful observation to survive, until he dies rescuing Uno. Ando Kazumasa (played by Kotaro Yoshida) appears in Cube.
An arrogant corporate executive whose authority crumbles in the Cube; he becomes abusive toward Ochi before being brutally killed by him. First Man (played by Tokio Emoto) appears in Cube.
The initial victim whose death by razor beams introduces the deadly nature of the Cube and whose corpse later drops into the group's room.
Cube (2021) character relationship network mapped with AI analysis. Explore the connections, alliances, and conflicts between characters.
Characters
Goto Yuichi
(played by Masaki Suda) — protagonist
An engineer who overcomes paralyzing fear and past trauma to become the group's strategic thinker and moral anchor, ultimately sacrificing his own escape to save Uno and Kai.
Kai Asako
(played by Anne Watanabe) — protagonist
A mathematics teacher who deciphers the trap logic using prime numbers and Cartesian coordinates. Revealed at the end to be a cybernetically monitored observer of the experiment.
Ochi Shinji
(played by Masaki Okada) — supporting
A freeter who turns violent under pressure, murdering Ando and deliberately luring the group into traps before being killed by the Cube's mechanisms.
Uno Chiharu
(played by Hikaru Tashiro) — supporting
A traumatized middle school student who survives by memorizing room sequences and calculating safe paths, ultimately escaping the Cube with Kai.
Ide Hiroshi
(played by Takumi Saitoh) — supporting
A pragmatic mechanic who initially leads the group through the maze, using decoys and careful observation to survive, until he dies rescuing Uno.
Ando Kazumasa
(played by Kotaro Yoshida) — supporting
An arrogant corporate executive whose authority crumbles in the Cube; he becomes abusive toward Ochi before being brutally killed by him.
First Man
(played by Tokio Emoto) — supporting
The initial victim whose death by razor beams introduces the deadly nature of the Cube and whose corpse later drops into the group's room.
