As cheesy as it feels to add a Narrator as a character, it definitely makes sense for Arrested Development.  Ron Howard, the producer of the show, narrates the show and even appears on screen in a cameo.  He sometimes tells the facts, sometimes makes stuff up, but is always there to keep you entertained.

Narrator Quotes

Soon, George Michael went to Ann's to try to win her back. But her Uncle Paul told him that Ann had moved in with her boyfriend. He also mentioned that we all only had 3 more weeks on earth and that fossils were just something the Jews buried in 1924.

Narrator

Narrator: ... and Michael discovers that he wasn't "N. Bluth" after all.
Michael: I have an older sister?
Narrator: So much for not abandoning family.

Arrested Development Quotes

Oh, mercy me! I forgot that we were in the colonies.

Mrs. Featherbottom

(Regarding Buster) Maybe it was the eleven months he spent in the womb. The doctor said there were claw marks on the walls of her uterus. But he was her 'miracle baby'. And I-I was just too burnt out on raising you guys to care. So... He turned out a little soft, you know...

George Sr.