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

F. Javier Soto

First Assistant Director

Chris Fitzpatrick

Prosthetic Supervisor

Margarita Huguet

Unit Production Manager

Sandra Hermida

Production Manager

Olga Pujalte López

Second Assistant Director

Roberto Bonacini

Stunts

Grace McComisky

Prosthetic Makeup Artist

Pep Parés Font

Third Assistant Director

Roberto Álvarez Espinedo

Property Master

Martí Maluquer

Gaffer

Javier González Leonardo

Key Grip

Celine Gravez

Second Assistant Camera

Nuria Mbomio

Makeup & Hair

Edu Glez

Graphic Designer

Cuco Usín

Stunt Coordinator

Almudena Cormenzana

Production Coordinator

Marc Carreres

Visual Effects Editor

César Solar

Stunt Coordinator

J. A. Bayona

Executive Producer

Sergio G. Sánchez

Director

Sergio G. Sánchez

Writer

Fernando Velázquez

Original Music Composer

Oriol Tarragó

Supervising Sound Editor

Oriol Tarragó

Sound Designer

Marc Orts

Sound Re-Recording Mixer

Denise Kum

Prosthetic Designer

Álvaro Augustin

Producer

Tamara Arévalo

Boom Operator

Marc Gonell

Foley

Xavi Giménez

Director of Photography

Sonia Grande

Costume Design

Pelayo Gutiérrez

Sound Designer

Pelayo Gutiérrez

Supervising Sound Editor

Lucas Fernández

Boom Operator

Marta Monistrol

Foley

Chisko Blanco

Electrician

Ana Charte

First Assistant Editor

Cristina Sánchez Belmonte

Script Supervisor

Elena Ruiz

Editor

Jaime Anduiza

Art Direction

Ghislain Barrois

Producer

Patrick Salvador

Production Design

Glòria Blanes

Script Supervisor

Wanda Morales

Assistant Costume Designer

Sergi Bartrolí

Second Unit Director of Photography

Beatriz Delgado

First Assistant Camera

Ana Cuerda

Assistant Costume Designer

Edu Canet

Camera Operator

Andrea Paralta

Dialogue Editor

Enric Masip

Special Effects Supervisor

Francesc Carreras

First Assistant Camera

Quim Vives

Still Photographer

Emily Jacobs

Casting Associate

Boi Martínez

Foley Editor

Belén Atienza

Producer

Karen Lindsay-Stewart

Casting

Sara Cabrera

Set Costumer

Nacho Martinez

Electrician

Àlex Villagrasa

Visual Effects Supervisor

Daniel Adams

Utility Stunts