Mario Szichman was born in Buenos Aires in 1945, and lived in Caracas from 1967 to 1971, where he worked as a journalist and wrote his novel False Chronical, which made it to the Casa de las Américas awards in 1969.

Valenciano nasceu na Suécia em 1972. Entusiasta e conhecedor da importância de cuidar do mundo interior da pessoa. Ele é formado em Psicologia e tem um diploma oficial como psicólogo clínico, terapeuta Gestalt e diplomado em Ciências Religiosas.

Mario Lacruz Muntadas was born in Barcelona in 1929, and died in the same city in 2000. During his lifetime he published the three novels which are now presented as The Trilogy of Guilt.

Mario Cuenca Sandoval, geboren 1975 in Sabadell (Katalonien). Lehrer für Philosophie am Maimónides-Gymnasium (Córdoba).