High school senior whose prank triggers a deadly cover-up and killing spree.
Amber and Colby are a committed couple whose relationship is tested by guilt and violence.
The plot identifies Colby Patterson as Amber's boyfriend, and they face the threats together after the fatal prank.
Zoe provides Amber with immediate shelter and emotional support.
Amber drives to Zoe's shack after receiving threatening messages, and Zoe allows her to sleep there.
Lance becomes Amber's principal ally during the final survival effort.
Amber and Lance are attacked together at the festival and later escape in a car to confront the killer.
Their shared prank links Amber to Roger's fatal mistake and its cover-up.
Roger impersonates the killer during the carnival prank organized with Amber and the other friends.
Explore the full interactive character relationship map of I'll Always Know What You Did Last Summer