Sergio Llanes Romera nasceu em Murcia no dia 24 de outubro de 1975. Funcionário público. Atualmente vive em Alcantarilla. Começa a escrever de forma contínua em 2008, quando sente a imperiosa necessidade de contar suas reflexões sobre a luta entre o bem e o mal.

Sergio L. Palacios was born in Áviles (Asturias, Spain) in 1966, and hholds a permanent post in applied physics at the University of Oviedo.

Sergio Kern is a writer, designer, illustrator, poet and anything else he needs to turn his hand to. He has dedicated himself to all aspects of publishing children's books for more than 15 years.

Sergio García is a cartoonist and cartoon theorist born in Guadix on the 15th of May 1967. He works primarily in the French market and the bulk of his work is unpublished in his home country.