Johnny Knoxville is a fictional character portrayed by Johnny Knoxville in the TV series Family Guy.
In the first episode they appeared in, titled The Man with Two Brians (season 7), they were 37 years old.
They appear in 1 episodes out of a total of 424 aired so far
Episodes1
The Man with Two Brians
episode S7.E5 november 2008Peter gets the Griffins a new, younger dog to eventually replace an aging Brian.