Dario Castillejos was born in Oaxaca City in Mexico in 1974.
He draws cartoons for the newspaper El imparcial de Oaxaca, for the weekly El Chamuco and for the magazines Courrier International and Foreign Affairs Latinoamerica.
Currently, he is the president of CartonClub, the Latin American cartoon club.
He received the Benito Journalism and Information Award (Oaxaca) in 1997, 1999 and 2005.
He also won twice the prestigious Journalism National Award from the Citizen Council of Mexico, along with the Journalism National Award from the Mexican Journalists club in 2013.
In 2011, he was awarded the Grand Award and the First Prize of the 38th International Humour Meeting in Piracicaba in Brasil.
He also received an honor mention at the World Press Cartoon 2007 Sintra in Portugal, and at the Greekartoon 2006 in Greece.