Intellectual Homer was a man in Homer's mind.
Serious Homer once told Fun Homer that he shot and killed Intellectual Homer. He is still clutching his diploma and was wearing Homer's teacher sweater and a graduation cap, meaning that Intellectual Homer was graduating before he was shot. Next to his body are letters written in his blood saying, "Ontogeny Recapitulates Phylogeny".
- Intellectual Homer's death could be the reason why Homer is not really smart.