|Relatives||Horrible Gelatinous Blob, father|
|First appearance||The Route of All Evil|
|Voiced by||[[Tress MacNeille|Tress MacNeille]][[Category:Characters voiced by Tress MacNeille|Brett Blob]]|
Brett Blob son of Horrible Gelatinous Blob went to the same school as Cubert Farnsworth and Dwight Conrad where he became the school bully. When Dwight and Cubert delivered their newspapers they angred Brett by throwing a paper through his window and H.G Blob fought with Hermes and the professor.
- Brett Blob: Pretty scrawny black hole. It must be hungry.
- Brett Blob: I thought I heard the doorbell but I see it was the dorkbell!