
Also Known As: Giles Harrison, The Santa Slayer of London
First Appearance: Don’t Open Till Christmas (1984)
Most Iconic Form: A traumatised man committing a series of violent murders against people dressed as Father Christmas
Kill Count: At least seven confirmed victims
Portrayed by: Alan Lake
Tier: Third Class Tier
Don’t Open Till Christmas (1984)

Directed by Edmund Purdom, with uncredited contributions due to a troubled production, Don’t Open Till Christmas stands as one of the strangest and most chaotic slasher films of the nineteen eighties. Set in the streets and nightclubs of London during the festive season, it follows a series of grisly murders targeting men dressed as Father Christmas. At the centre of this spree is Giles Harrison, a disturbed killer shaped by childhood trauma.
The story slowly unravels Giles’s motivation through fragmented memories and scenes involving his sister Kate and their father. Years before the events of the film, Giles witnessed a devastating incident involving his father, dressed as Father Christmas, with a woman in a compromising position. This moment shattered his perception of the holiday and fused disgust, betrayal, and anger into an obsession with punishing those who wear the red suit.
As an adult, Giles becomes increasingly unstable. The murders he commits are striking for their creativity and brutality. Victims are stabbed, burned, shot, or impaled in public places, often in front of crowds who mistake the violence for festive performance. This juxtaposition between Christmas cheer and sudden horror gives the film its uneasy tone. Giles blends into the city, attacking in parks, subways, museums, and strip clubs with unnerving confidence.
Despite the disarray of the production, the film paints Giles as a lonely figure whose trauma has spiralled into uncontrollable rage. He does not revel in the killings with theatrical flair, nor does he attempt to mask his actions behind ritual or ideology. Instead, he acts from a fractured internal logic where every Father Christmas becomes a reminder of betrayal. His relationship with his sister adds emotional weight, as she slowly realises the truth while trying to protect the last pieces of their broken family.
The climax takes place in an abandoned theatre, where the chaotic energy of the film reaches its peak. Giles, cornered and wounded, confronts his memories as much as the police who pursue him. His final moments reflect not triumph or defiance, but the collapse of a man who never escaped the past that shaped him.
Character and Themes

Giles Harrison is a classic example of a psychologically driven slasher villain. His crimes stem entirely from trauma, not supernatural influence or calculated malice. He kills Father Christmas impersonators because the costume has become a symbol of the betrayal that defined his childhood.
The film presents him as both a threat and a tragic figure. His violence is brutal and chaotic, yet his inner world is filled with confusion and unresolved pain. Unlike many festive horror villains who lean into camp or fantastical imagery, Giles remains rooted in the real consequences of psychological damage.
His anonymity in the early scenes, blending into London crowds, makes him feel more like a hidden danger than a theatrical slasher icon. His humanity is the source of the horror.
Legacy

Don’t Open Till Christmas has long been a cult favourite among fans of British slashers due to its unusual setting, erratic pacing, and offbeat tone. The film’s turbulent production history has only increased its notoriety.
Giles Harrison remains a memorable figure because of his grounded motivation and the unsettling nature of his crimes. He represents a uniquely British interpretation of eighties slasher tropes.
The film’s legacy has been revived significantly by new home media releases, including the 88 Films Blu ray edition scheduled for December 2025, which presents the film with restored picture quality and archival extras. This release has renewed interest in the character and the film as a whole.

League Placement
Giles Harrison belongs in the Third Class Tier. He is a deeply human killer shaped by trauma, whose violence emerges from psychological collapse rather than grand design or supernatural power.
