Susan

could refer to three characters.
==Characters==
*Susan (My Big Fat Greek Bob) - One of Linda Belcher and Gretchen's "lady goods" (vibrators) customers in "My Big Fat Greek Bob"
*Susan (Lorenzo's Oil? No, Linda's) - One of the guests at Angie's essential oils party appearing in "Lorenzo's Oil? No, Linda's
*Susan (Wheeler Cat) - The cat belonging to the Wheeler family mentioned in "The Gene Mile"