Collision Course

Relentlessly determined and willing to defy orders, Costas pushes a difficult investigation forward even when his own department tries to shut it down. He partners with Natsuo to chase leads that official channels ignore, showing a stubborn commitment to justice. He strategizes under pressure and risks his career for the truth.

A Japanese investigator arriving in America to track down the turbocharger, Natsuo brings a calm, methodical approach and a willingness to work across cultures. He collaborates with Costas to navigate systemic obstacles and hostile locals. His presence also introduces themes of cultural exchange and loyalty.

A calculating crime boss who controls Jarryd and manipulates the criminal underworld. He embodies power and ruthlessness, using intimidation and leverage to ensure his investments pay off. He is the architect behind the conspiracy that drives the central conflict.

A brutal enforcer tasked with watching Jarryd and enforcing orders. Scully is quick to violence and shows a willingness to use deadly force to secure outcomes. His presence raises the stakes of every encounter and spikes the danger in Costas and Natsuo's pursuit.

A debt-burdened figure drawn into Madras's orbit, Jarryd is caught between his loan and the consequences of failing to repay. He becomes a pawn in the larger game, displaying a mix of pragmatism and fear under pressure.

A racist homicide lieutenant who resists investigating a case involving a Japanese national. Dingman represents institutional prejudice and obstruction, forcing Costas to work around him to seek the truth. His attitude highlights the film's tension between justice and bigotry.

The inventor who places the turbocharger in a car, Oshima embodies the theme of hidden knowledge. His decisions and hidden stash set the plot in motion, creating the central motive for pursuit.

Natsuo's boss who assigns him to the American mission, Kitao represents the transnational corporate or official oversight behind the investigation. His role signals the institutional tie to the mission.

A youth figure in the tenement environment who reflects the social backdrop of Detroit's urban landscape. His presence helps to illustrate the lived reality of the city and the stakes of crime within it.