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

She sometimes takes a little pack of mayonnaise and she'll squirt it in her mouth all over. And then she'll take an egg and kind of...mmmm! She calls it a 'mayon-egg.' Are you okay?

George Michael

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

Mrs. Featherbottom