The Flying Missile

A decorated submarine commander whose drive to prove the viability of missile-guided warfare leads him to take risks and pressure his crew. He pursues Karin, steals the needed parts, and pushes for a rapid, daring test that ends in injury and loss. His ambition exposes the film's tension between bold experimentation and the safety of the crew.

The Danish secretary and niece of Lars Hansen who becomes entangled in Talbot's plan. She reveals information essential to the test, loses her job, and becomes a catalyst for the events that unfold. Her actions reflect a conflict between personal loyalty and professional duty.

The loyal quartermaster who carries the weight of the crew's safety and morale. He is killed during the test, a turning point that deeply affects Talbot and highlights the human cost of risky experiments.

Danish fleet owner and Karin's uncle who becomes a foil to the American test efforts. His fishing fleet is affected by Bluefin's maneuvers, illustrating civilian disruption caused by military experimentation and the tension between civilian livelihoods and defense.

The admiral who oversees the test program and signals support for missile development. He represents the institutional backing that allows risky experiments, even when outcomes are uncertain.

A high-ranking general who weighs military strategy and policy implications of missile deployment. He embodies the broader strategic concerns behind testing and deploying new weapons.