The Bullet Train

A former businessman who lost his production company to bankruptcy and severed ties with his wife and son. He teams up with Masaru Koga and Hiroshi Ōshiro to extort money from the government, showing a calculating and desperate mindset. His scheme hinges on manipulating authorities and exploiting public fear, and his arc culminates in a fatal confrontation at the airport.

An activist-turned-conspirator who drives the extortion plan with cold practicality. He wields political rhetoric and strategic thinking to keep Okita’s plot alive, showing a willingness to push boundaries for his cause. His end arrives as a dramatic assertion of resistance when faced with capture.

Okita’s former employee who joins the scheme, becoming a key operative in the plot. He remains loyal to the cause until the chase closes in, and his flight ends in a fatal collision with a police car after a desperate escape.

The train conductor who coordinates with Shinkansen leadership to protect passengers while timing the train’s movements against the detonator. He ultimately helps to stop the train and plays a central role in the defusal sequence.

Shinkansen director coordinating the safety response and maintaining communication with Aoki. He makes a public appeal for Okita to disarm the bomb and faces professional ruin when the crisis ends, resigning in the aftermath.

Railway security head who drives the ransom operation and tracks the bomb’s parts. He must balance bureaucratic processes with the urgency of the threat, coordinating the government's response as the crisis unfolds.

A co-engineer who helps inform passengers about the bomb and contributes to the plan’s strategic execution. He provides technical insight and keeps the crew focused during the emergency.

A former accomplice of Okita who is escorted after arrest and later reveals that Okita plans to flee the country under a false name. His testimony unravels part of the conspiracy and pushes the pursuit forward.

An associate of Masaru Koga who meets a dramatic end by detonating dynamite rather than surrender, underscoring the film’s fatalistic tempo.

Okita’s ex-wife who spots him at the airport, adding a personal, human dimension to the crisis. Her presence anchors the story in a civilian, familial stakes and she bears witness to the cost of Okita’s actions.