While there has been some disagreement on what exactly constitutes a developmental disability, also known as a learning disability, it is generally defined as any disability that has a negative impact on a person's ability to learn. It could be physical (like blindness), mental (like psychosis) or both (like Down's Syndrome).
Characters with developmental disabilities[]
- Allison, from the episode Allison. She is hearing-impaired and uses sign language.
- Fonzie: not usually, but in Fonzie's Blindness, he temporarily went blind. However, he has never had any developmental disabilities in other episodes.