Patricia "Patti" Mayonnaise is a main character in the Nickelodeon and Disney animated series Doug. She is the only daughter of Chad and Mrs. Mayonnaise. The secret love interest (later girlfriend as of the movie) of Doug Funnie and the nicest character in the series, Patti is a talented athlete who is also a top student in the 6th grade at Bluffington School (7th grade at Beebe Bluff Middle School in the Disney version).