Evan Hudson is Dorothy Ann's little sister. She only appears in "Out of This World". She has blonde hair just like the other Hudsons (minus their dad). In the aforementioned episode, Mrs. Hudson pointed out that Dorothy Ann would be proud that Evan saw the meteor shower. Evan also likes sleeping with her stuffed green koala.
| Parents | Mr. Perlstein | Mrs. Perlstein | Mr. Hudson | Mrs. Hudson | Mr. Ramon | Mrs. Franklin | Mr. Terese | Dr. Tennelli | Mrs. Li |
|---|---|
| Siblings/Cousins | Murph* | Evan Hudson | |
| Friends | Professor Cornelia C. Contralto II* | R.U. Humerus* | Dr. Skeledon* | Molly Cule* | |
| Pets | Wanda's Dog* | Noodles |
| Other Characters | Mr. Seedplot* | The Baker* | Mr. Junkett* | Harry Herp* | Gerri Poveri** | |