Madame Lefrere

Madam Lefrere is an unseen character that only appears in Rodrick Rules. She is a French teacher who selected pen-pals for her students. Greg marked off boxes for a female penpal, however Madame told him that he has got to take a French boy same age as him, so Greg was paired with Mamadou Montpierre. Her name literally translates to "Mrs. The brother."