Guillermo Fesser Pérez de Petinto is a Spanish journalist, radio presenter, writer and filmmaker. He is best known for utilizing humor while reporting news on Spanish radio throughout his program called Gomaespuma. It gained a significant audience during serious media of the time and was an instant hit. Fesser studied journalism at the Universidad Complutense de Madrid and later received a Fulbright Scholarship to study film at the University of Southern California.
With his partner Juan Luis Cano, Fesser created in 1984 Gomaespuma, a company that has produced shows and commercials for radio and television as well as books, music albums and cultural events. Fesser and Cano have also been involved in the Gomaespuma Foundation, which supports children educational and social projects.
Fesser has also directed, executive produced and was one of the screenwriters of the film Cándida.