Mateo Dineen was born in San Mateo, California. In 2003 Mateo moved to Berlin. As he began his new life there, his art developed in new directions. He discovered that the Berlin flea markets offer a wealth of old materials left over from communist Germany. He saw that these objects already had the patina of life and presented a story of their own. These relics included munitions crates, tobacco tins, and old dusty books. By incorporating these things into his work, he was able to create something new. His characters were given new life on a background of collage and history. Over the next few years he and his artwork became a fixture of the Berlin art scene. In 2004 he and a colleague opened the Zozoville Gallery. These days Mateo can usually be found in the back room of that gallery creating more of his signature characters and monsters.