Characters[]
- Mary, a student in Miss Sweetwater's third grade class
- Mary Alice "Muffy" Crosswire
- Mary Moo Cow - D.W.'s favorite preschool character
- Maryann, a preschooler in D.W.'s class
- Mary Shelley, the author of Frankenstein
- Mary Perchanok, a student in Mr. Ratburn's fourth grade class