Felix pretended to be Carmen and Juni Cortez's uncle, meaning that he was Gregorio Cortez's fake brother, in place of the cut off Machete Cortez. He wears a fake mustache to fool the Cortez Children, which convinced them very much throughout the very first Spy Kids film. Felix was later caught by (what appeared to be) Floop's henchmen and turned into a Fooglie just like the other captured agents