Characters from the past returning. Who else should return?

[Nomnomzombie]

Before the episode where Lois's sister Carol came back to the show, it's been bothering me where the hell all those other characters from the past went.

Carol, who was last seen on millions of episodes ago returned in the "Brothers & Sisters* episode.

And Bertram who was from millions of episodes ago too, is also returning on the "The Big Bang Theory" episode:
http://familyguy.wikia.com/wiki/The_Big_Bang_Theory

In your opinion, who else should return on the show?

I think Carol and Lois' brother Patrick (voiced by Iron Man Robert Downey Jr.) should come back too.

And British girl Eliza Pinchley who swore to take revenge on Stewie.

Also Olivia, who may and may not have died on the arson.

Chris's girlfriends! Anna (Amanda Bynes) and Sam (That girl who Chris thought was a boy), The chief's daughter.

Jasper, Brian's gay cousin and his Filipino boy husband Ricardo.

 

[BeAlone]

I'm good with the characters they are showing, for now.