Mr. Hudson is the father of Dorothy Ann and Evan. He appears in "Going Batty," "Rocks and Rolls," and "The Tales Glaciers Tell." His speaking debut was in the latter, where he was voiced by Arnold's original voice actor, Amos Crawley.
| 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** | |