A fine arts graduate, Antton Olariaga is an illustrator and graphic designer who has also worked on comics. He was born in the Basque Country and he wrote his comics in Basque. A compilation of Olariaga's early works, mainly gag cartoons, called 'Eta abar' appeared in 1975. Olariaga created 'Kaleko' in 1975 and 'Airko' in 1977. Both characters showed up in magazine Anaitasuna, the latter with scripts by Xabier Kintana. Olariaga created 'Zakilixut', his best known comic strip, in daily Egin in 1977.
Zakilixut's ironical thoughts often dealt with sex and politics. The enduring character entered the 21st century by means of different publications. Olariaga began doing comics for children's magazine Ipurbeltz in 1977. Other publications he contributed to were Zeruko Argia, Punto y Hora and Euskadi Sioux. Other characters he created were 'Hormasprayko', 'Mozorrozko', 'Marizikin' and, for El Diario Vasco, the badger 'Alukiss'. In 1985 he did 'Hamaseigarrenean Aidanez', an adaptation of a novel by Anjel Lertxundi.