Chloé Coulloud as Lucie

Félix Moati as William

Jérémy Kapone as Ben

Catherine Jacob as Wilson

Marie-Claude Pietragalla as Jessel

Chloé Marcq as Anna

Béatrice Dalle as Lucie's Mother

Joël Cudennec as André Marchal

Sabine Londault as Maddy

Serge Cabon as M. Kerrien, le père de William

Nathalie Presles as La mère de Ben et William

Adèle Fousse as Catherine Wilson adolescente

Roxanne Fillol Gonzalez as Ophélie

Kallia Charon as Danseuse 1

June Ribière as Danseuse 2 / Enfant Halloween (sorcière) / Petite fille en vélo

Oriane Azam as Danseuse 3

Thomas Ribière as Enfant Halloween (squelette)

Loïc Berthézène as Pierre Klavel