Stormy Monday

A down-on-his-luck Irishman hired by Finney as a janitor-turned-delivery operative. He’s street-smart, cautious, and increasingly drawn into the dangerous power plays surrounding Cosmo. Brendan becomes a crucial courier of information, willing to risk himself to protect Kate and expose threats. His loyalty is tested as violence and betrayal loom.

A woman with a shadowy past tied to Cosmo, who navigates a dangerous game of lies and loyalty. She knows Cosmo's schemes and uses her wit to survive, while forming a fragile connection with Brendan. Kate's courage surfaces as she confronts pressure and contemplates an escape to Minnesota. Her dual loyalties push her into tense moral choices.

A corrupt New York businessman staying in Newcastle for America Week, determined to secure international deals through coercion and manipulation. He wields influence with money, status, and a dangerous network, and his schemes trigger most of the story's violence. His attempts to silence opponents push Brendan and Finney toward a dangerous confrontation. Ultimately, Cosmo's power is challenged by those who refuse to be bought.

Owner of the Key Club who navigates the criminal underworld with a mix of pragmatism and instinct. He’s protective of his circle and uses his resources to stay one step ahead of Cosmo. Finney's decisions carry the weight of the club's fate, and his unexpected acts shape the film's turn of events. He ultimately complicates Brendan's loyalty by both aiding and resisting Cosmo's schemes.

A member of the Kraków Jazz Ensemble whose presence anchors the film's musical world. He joins Brendan and Kate in navigating the tense Newcastle nights and the ensemble's unexpected role in local intrigue. His actions inadvertently influence the course of events, including a dangerous eruption of violence during the bomb plot. Andrej personifies the cross-cultural exchange at the story's core.

A member of the Kraków Jazz Ensemble connected to the hotel and social events orchestrated around America Week. She shares in the ensemble's performances and the film's emotional moments, contributing to the music's atmosphere and the human stakes of the plot. Christine's presence deepens the ensemble's involvement in the unfolding danger. Her arc intersects with the film's tragic turn when the bomb strikes.

Cosmo’s aggressive associate who signals Brendan during the pursuit and enforces Cosmo’s will. He embodies the enforcement arm of the criminal network and escalates violence when deals go wrong. Bob represents the immediacy of danger in the film's midpoint and the risk Brendan faces as he uncovers Cosmo's plans.