I presume you're asking for the names of Peter's friends?
Quagmire, Joe, Cleveland & perhaps less of a friend, Mort
family guy
Butch Hartman and Seth MacFarlane are friends and Butch did some voices in the early years of Family Guy. Dr. Hartman from Family Guy is named after Butch.
"The Simpsons" and "Family Guy" are cartoon shows and therefore it is impossible for them to be friends. Assuming you mean the creators, the answer is Yes. Seth MacFarlane & Matt Groening have both have stated in interviews they are friends. I'm sure they aren't hanging out drinking together but they are friends in a professional mutual respect sort of way.
Its a take on the intro from "All in the Family."
He's the Griffin family's alcoholic talking dog as well as peters best friend in Family Guy.
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Model Misbehavior
Lando Griffin
It is Sea Biscuit and it is Peters father inlaws race hound that Brian knocked up.
If you are talking about Peter's friends they are Cleveland, Joe, and Quagmire.
Family Goy
To be friends with him.
He loves you.
No!
Because she's a nice lady, and hotter than the other guy's wives.
Try for another guy or play with friends pets and family more
You can watch Family Guy episodes on NETFLIX and the Family Guy website.