Horacio "Gamexane" Villafañe (20 October 1963 – 22 November 2011) was an Argentine musician, singer and songwriter, and one of the original members of the rock band Todos Tus Muertos.
From a middle-class family, Villafañe grew up in San Bernardo, where interested by the music, listening bands like The Clash, the Sex Pistols and Wire.
In 1979, he formed Los Laxantes, one of the first Argentine punk bands, with Enrique "X" Valle and Felix "Sagnia" Gutiérrez, recording a demo by 1981.
After the Los Laxantes return and dissolving newly in late 1984, Gamexane and Felix with Jorge Serrano started Todos Tus Muertos in 1985.
By 2006, Todos Tus Muertos returned with Pablo Molina as the only singer, with Félix Gutiérrez, Christian Fabrizio and Germán Álvarez.