I Saw What You Did

A man with apparent mental instability who murders his girlfriend Robyn Griffin after she declines his marriage proposal. He is dangerous, obsessive, and willing to escalate violence to maintain control. His fixation on the prank-call victims drives much of the chase and confrontation, culminating in a deadly blaze.

Adrian’s visiting brother who grows suspicious of Adrian’s behavior. He plays a role in uncovering the truth and ultimately informs the authorities about Adrian’s involvement. His concern for his brother and the danger he poses adds a secondary layer of tension.

An intelligent, rule-abiding classmate who hosts a dinner and reluctantly participates in the prank-call game. She becomes entangled when the calls turn dangerous, and she must navigate fear to protect Julia. Her courage and quick thinking help her and Julia escape the escalating threat.

Kim’s younger sister who is babysat during the night. She appears as part of the domestic setting, adding a family element to the tension. Her presence heightens the stakes as the danger encroaches on the home environment.

A popular high school student who participates in the prank-call setup and uses the game to connect with friends. She underestimates the real danger attached to the calls and becomes part of the escalating situation. Her actions catalyze the events that drive the plot forward.

Adrian’s girlfriend who is murdered by him, serving as the crucial backstory for his volatile behavior. Her death is the catalyst for the ensuing investigation and the foreboding presence that haunts the characters. She represents the irreversible consequences of Adrian’s actions.

Lisa’s boyfriend who appears as part of the social backdrop. He represents the teen social dynamics and the normal life the characters try to cling to amid the creeping danger. His role underscores the contrast between ordinary adolescence and the extraordinary threat unfolding.

A neighbor who steps in to help the girls escape danger. He embodies the community's supportive side and becomes a pivotal figure in the final act. His presence provides a lifeline when the tension peaks.

Lisa’s mother, part of the family dynamics present in the home setting. Her presence emphasizes the domestic backdrop and the responsibilities of family life that are interrupted by the night’s events.

A minor character who appears in the neighborhood setting. His role contributes to the sense of a close-knit community and the police presence that surrounds the case.