Gutterballs

A member of Steve’s group who participates in the attempted coercion and later confesses involvement in the assault. His actions mark him as a perpetrator and a casualty within the group’s unraveling. He is killed when Egerton slits his throat to punish him for his role and failure to act.

An anonymous killer identity appearing on the scoreboard as BBK, foreshadowing a masked threat. The lingering presence of BBK threads through the night’s murders, with the twist that the killer is later tied to the events. The alias links the killings to the bowling-themed setting.

A transgender woman targeted early in the night and subjected to assault by Steve’s group; her case catalyzes the cascade of violence. She endures the night’s terror alongside Lisa and Jamie as the situation spirals. Her brutal fate underscores the film’s unflinching depiction of abuse.

A friend who ultimately seeks retribution after the assaults, even revealing that she killed Steve. She participates in the escalating chaos but is killed toward the end, reflecting the film’s focus on cycles of violence and revenge.

The janitor whose brutality unfolds as the killer behind the night’s murders. He justifies his actions as a failure of others to help, leading to a brutal confrontation with Jamie and Lisa. His arc culminates in a violent showdown.

Part of the aggressor group who harasses Sam; his actions set the tragedy in motion. He is defeated violently by the night’s end, illustrating the collapse of the adults’ control.

A traumatized teen who becomes entangled in the night’s horrific events. He refuses to support the group’s violence, later helps the survivors, but ultimately kills Egerton and is killed by Sarah, highlighting the chaotic morality of the night.

Julia’s friend who shares a moment with her in the bar and becomes a victim of the killings in the bathroom.

A friend who connects with Dave and is later killed during the night’s killings in the bathroom scene.

A member of Steve’s team who becomes a brutal casualty of the killings, ending with his severed head rolling from the ball return.

A participant who becomes a victim when his eyes are gouged out with a bowling pin.

Ben’s partner in the night who is strangled by shoelaces in an upstairs sequence, adding to the night’s brutality.

A participant who witnesses the violence and is killed by a mechanical knight wielding two bowling balls.

A member of the night’s group who becomes a victim after an escalated series of chaotic events.

A survivor who ultimately acts decisively, kills Lisa, and then shoots Jamie after determining the group’s complicity in the violence.

A secondary character linked to the BBK presence in the night’s events; the second unit slug appears in the cast to support the mystery element.