Manuel Sicilia Director, Screenwriter Saoirse Ronan Talia Voice Mark Strong Heraclio Voice Freddie Highmore Justin Voice Antonio Banderas Sir Clorex Voice, Producer Tamsin Egerton Lara Voice Olivia Williams Queen Voice Charles Dance Legantir Voice Julie Walters Gran Voice Rupert Everett Sota Voice Alfred Molina Reginald Voice James Cosmo Blucher Voice David Walliams Melquiades Voice Barry Humphries Braulio Voice Michael Culkin Sebastian Voice Matthew Jacobs Screenwriter Sarah Arnott Executive Producer Francesca Nicoll Executive Producer Kerry Fulton Executive Producer Marcelino Almansa Producer Ralph Kamp Producer Isabel Garcia Peralta Co-Producer Ilan Eshkeri Original Music Javier Fernández Cinematographer Claudio Hernández Film Editing Colin Jones Casting Gail Stevens Casting Esteban Martín Art Director Oscar J. Vargas Art Director