Miguel Gallardo (Lleida, 1955), has a Diploma by the Escuela Massana de Artes y Oficios of Barcelona. He started his career working both in comics and illustrations. He created Makoki in 1977, the most emblematic character of the Spanish underground culture.

Miguel Francisco Caballero Pérez was born in Málaga in 1959. He works in historical research and is a founding member of the Madrid Institute for Historic Studies, Jimenez de Gregorio. Currently he is the official reporter for Láchar in Granada.

Miguel Espinosa (1926-1982) was born in Caravaca (Murcia) where he has lived for most of his life. He studied law and worked for two Japanese companies in the area of import and export, and latterly as a legal adviser for various companies.