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

Lindsay: No, Michael, I don't just sleep all day.
Narrator: Actually, Lindsay was so upset at Michael that she tried meditating to calm herself but ended up taking a two-hour angry nap.

Tobias recently lost his medical license for administering C.P.R. to a person who, as it turns out, was not having a heart attack.

Narrator

Arrested Development Quotes

(holding stuffed animals) These are my awards, Mother. From Army. The seal is for marksmanship, and the gorilla is for sand racing. Now if you'll excuse me, they're putting me in something called Hero Squad.

Buster

Barry Zuckerkorn: Ooooo! And that's what we call a law-bomb!
Attorney: That's a low blow, Loblaw.
Bob Loblaw: A Bob Loblaw Law Bomb!