Mrs. Wingo is Doug Funnie's teacher at Bluffington Elementary. She is usually shown as sweet and sympathetic, but is strict when she needs to be. She has taught at Bluffington Elementary for such a long time that Mr. Dink is one of her former students. Evidenced by the episode Doug Meets RoboBone, Ms. Wingo also is a fan of The Beets. Mrs. Wingo only appeared in the final episode of the Disney incarnation.
- Mrs. Wingo is based on the real Mrs. Margarete Wingo, a wonderfully talented teacher who taught for many years at Maude Trevvett Elementary School in Henrico County, Virginia and whose students included Doug's creator, Jim Jinkins.