In "Wasted Talent", Lois forced Meg to practice the piano through the use of an ankle bracelet attached to an iron ball.

After winning the lottery, Peter quits working at the brewery and leaves a big pile of poo on Angela's desk.

Joseph "Joe" Swanson is a macho paraplegic police officer in the Quahog Police Department with anger management issues.

In a running gag, Chris is regularly tormented by an evil monkey who lives in his closet but they clear there differences shortly before the monkey moves to Jake Tucker's closet in "Hannah Banana".

The Griffins live at 31 Spooner Street.

The population of Quahog is revealed in the episode "Tom Tucker: The Man and His Dream" as 800.

Peter took trombone lessons in junior college. He plays the trombone during Chris' open house in "Fast Times at Buddy Cianci Jr. High".

in "Patriot Games", Chris was the only Griffin who was able to master cockney English.

In "Vestigial Peter", he asserts that he weighs 293 lbs, the same as he did in grade school.

Marian is Patrick Pewterschmidt's imaginary wife who supposedly appears in "The Fat Guy Strangler". Her police drawing is blank.