Helen Shivers is a fictional character in the I Know What You Did Last Summer franchise. She was created by American writer Lois Duncan and originates from Duncan's 1973 suspense novel I Know What You Did Last Summer as a young woman involved in a hit and run accident. In this version, she is known as Helen Rivers.

She was portrayed by actress Sarah Michelle Gellar in the Kevin Williamson scripted feature film I Know What You Did Last Summer (1997) as the Croaker Queen of the Southport 1996 Beauty Pageant. Her chase sequence with the killer of the film has been deemed iconic and has been described as toying with the audience's expectations.

Helen Shivers

While the film itself received mixed reviews, Gellar's performance was met with critical acclaim and the character has obtained a cult following in recent years. In 2018, she was portrayed by Greer Grammer in the musical parody I Know What You Did Last Summer: The Unauthorized Musical that premiered at the El Cid in Los Angeles.

Helen Shivers

The character is particularly notable for challenging horror film tropes of the time, in which the characters (in most cases teenage victims) were left underdeveloped and without a substantial story arc. Helen’s storyline has often been referred to as a highlight of the film.

Helen Shivers

Appearances

Literature

Helen originates from Lois Duncan's 1973 suspense novel I Know What You Did Last Summer. She is depicted as a high school drop out from a large family who manages to launch a successful television career as an actress. She was involved in a hit-and-run accident of a cycling boy with her boyfriend Barry Cox, and friends Julie James and Ray Bronson. A year later, Julie reveals a letter to Helen that says "I know what you did last summer". The next day, while tanning at her apartment complex she meets Collingsworth Wilson who moved into one of the vacant apartments the day before. She later finds a magazine cutout of a boy riding a bicycle taped to her apartment door. After a series of bizarre encounters with the anonymous figure toying with them, Helen is confronted by Collingsworth at her apartment. She locks herself inside her bathroom and escapes through her window as he tries to break the door down. Later, Helen calls the police and sends them to Julie's house, who was Collingsworth's next target.

Film

Shivers makes her cinematic debut in the 1997 film. On the Fourth of July, Helen wins the Fourth of July Croaker Beauty Pageant and reveals aspirations as a New York-based actress. Afterwards, she goes to the beach with her friends Julie James, Barry Cox, and Ray Bronson. While driving on the byway, they accidentally run over a pedestrian. They decide to dump the body into the sea and to never talk about what happened.

A year later, she is revealed to have failed as an actress and now works at her family's store. When Julie receives a letter with no return address, stating, "I know what you did last summer!" she tracks her down and the duo reunite with Barry and Ray. The rest of the group begin to receive taunting messages from the mysterious assailant. One morning, Helen wakes up to find her hair cut off and "Soon" written in lipstick on her mirror.

At the Croaker Beauty Pageant, Helen witnesses the murder of Barry on the balcony. With his body nowhere to be found, a police officer escorts a hysterical Helen home, but the killer murders him in an alleyway. Helen breaks out of the back of the police car and is chased to her family's store. The killer enters through the unlocked back door and murders her sister Elsa. Helen is chased to the third floor of the building and jumps out of the window. She manages to make it a few feet away from the parade, but the killer appears behind her and begins to slash her, her screams being obscured by the parade. Her corpse is later discovered by Julie.

Shivers makes a cameo appearance in I Still Know What You Did Last Summer (1998) in a photograph through use of Sarah Michelle Gellar's personality rights.