Moocho Brazos was the Strong Man in the circus that Kate Wetherall joined. He is said to be enormous with a large handlebar mustache. Moocho is an excellent cook, and particularly makes delicious pies. It is also said that he eats enough for several people. When Reynie meets him he is said to be wearing a flowery apron over overalls and house slippers.
According to Google Translate, a Spanish variant of his name, Muchos Brazos, translates to "Many arms", but "moocho" is a Polish word.