Juan Padrón (Matanzas, Cuba, 1947) began his career as a cartoonist at age 15, working as an apprentice at the Cuban Institute of Cinematographic Art and Industry. Later he collaborated with numerous magazines such as Mella, Pioneer or Rebel Youth, and his cartoons were also published in other countries of Latin America and the Soviet Union.
Miguel Barroso was born in Zaragoza in 1953. He has combined his studies in Law, Economics and Philosophy and Letters (specializing in Modern and Contemporary History) with journalism, collaborating, among others, with El Viejo Topo and El País.