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

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

Narrator: And Michael finds it difficult to get his father out of jail.
Michael: You love it here?
George Sr.: Oh, I'm having the time of my life. Hey, T-Bone.

Arrested Development Quotes

Gob: Take off your glasses. Oh ... Wait, wait. Let down your hair. No, glasses on, hair back up. Let's just get that hair right back up.
Kitty: Let me turn the lights off.
Gob: Yes, yes, please.
Kitty: How's that? Is that better?
Gob: It just seems like there's still light coming in from under the door.

Lucille: I'll have the Ike and Tina tuna.
Waitress: Plate or platter?
Lucille: I don't understand the question, and I won't respond to it.