George MacKay
Jack Marrowbone
Anya Taylor-Joy
Allie
Charlie Heaton
Billy Marrowbone
Mia Goth
Jane Marrowbone
Matthew Stagg
Sam Marrowbone
Nicola Harrison
Rose Marrowbone, Mother
Kyle Soller
Tom Porter
Tom Fisher
Simon Fairbairn, Father
Myra Kathryn Pearse
Molly
Paul Jesson
Doctor
Robert Strange
Monster
Laura Brook
Thelma (uncredited)
Adam Quintero
Mr. Gouldman (voice) (uncredited)
Sergio Burmann
Sound Mixer
Kike Maíllo
Second Unit Director
Sandra Hermida
Production Manager
Roberto Bonacini
Stunts
Olga Pujalte López
Second Assistant Director
Edu Glez
Graphic Designer
F. Javier Soto
First Assistant Director
Grace McComisky
Prosthetic Makeup Artist
Roberto Álvarez Espinedo
Property Master
Nuria Mbomio
Makeup & Hair
Pep Parés Font
Third Assistant Director
Marc Carreres
Visual Effects Editor
Dan Adams
Utility Stunts
Chris Fitzpatrick
Prosthetic Supervisor
Javier González Leonardo
Key Grip
César Solar
Stunt Coordinator
Martí Maluquer
Gaffer
Cuco Usín
Stunt Coordinator
Almudena Cormenzana
Production Coordinator
Celine Gravez
Second Assistant Camera
Margarita Huguet
Unit Production Manager
J. A. Bayona
Executive Producer
Sergio G. Sánchez
Writer
Sergio G. Sánchez
Director
Fernando Velázquez
Original Music Composer
Oriol Tarragó
Sound Designer
Oriol Tarragó
Supervising Sound Editor
Pelayo Gutiérrez
Sound Designer
Marta Monistrol
Foley
Sonia Grande
Costume Design
Tamara Arévalo
Boom Operator
Andrea Paralta
Dialogue Editor
Francesc Carreras
First Assistant Camera
Ana Charte
First Assistant Editor
Cristina Sánchez Belmonte
Script Supervisor
Ghislain Barrois
Producer
Denise Kum
Prosthetic Designer
Álvaro Augustin
Producer
Elena Ruiz
Editor
Jaime Anduiza
Art Direction
Sara Cabrera
Set Costumer
Pelayo Gutiérrez
Supervising Sound Editor
Lucas Fernández
Boom Operator
Marc Gonell
Foley
Beatriz Delgado
First Assistant Camera
Patrick Salvador
Production Design
Nacho Martinez
Electrician
Quim Vives
Still Photographer
Sergi Bartrolí
Second Unit Director of Photography
Marc Orts
Sound Re-Recording Mixer
Wanda Morales
Assistant Costume Designer
Glòria Blanes
Script Supervisor
Belén Atienza
Producer
Karen Lindsay-Stewart
Casting
Edu Canet
Camera Operator
Xavi Giménez
Director of Photography
Boi Martínez
Foley Editor
Enric Masip
Special Effects Supervisor
Chisko Blanco
Electrician
Emily Jacobs
Casting Associate
Ana Cuerda
Assistant Costume Designer
Àlex Villagrasa
Visual Effects Supervisor