A creative genius and Izzie's older brother, Mateo (aka Teo) is a talented artist who loves designing his own superhero comic books. His favorite thing to draw is Z-Blob, a cool character he created. Although he sometimes lacks confidence in his own abilities, he has a big heart and is always prepared to help his friends. Luckily, he has a trusty sidekick in the form of Z-Blob, who's his constant companion in the waking and dream worlds!