In "Don't Make Me Over", Brian had the innate habit of barking at black people. He barked at Dr. Diddy for being black and later apologized for his ways and said that this comes from his father. Dr. Diddy forgave him, only for Brian to do it again immediately afterwards.
In "Brian's Play", Stewie gave Brian a "good dog" award and Brian started to tear up, saying that he wished his father was there to see it.
- Brian Griffin: Portrait of a Dog (Mentioned)
- Road to Rhode Island (Mentioned)
- Don't Make Me Over (Mentioned)
- Fast Times at Buddy Cianci Jr. High (Mentioned)
- Chick Cancer (Mentioned)
- Brian's Play (Mentioned)
- Coco is racist against black people.
- In "Road to Rhode Island", Brian admitted that he and his father weren't very close, probably on account of them both having strongly different beliefs about the world.
- In the episode "Fast Times at Buddy Cianci Jr. High", it was revealed that his name was "Coco".
- In the same episode, it was revealed that he was dead, on account of getting run over by a milk truck.