One more character I had at one job: The Anchor's BOSS, who came to about every fourth meeting. As a result, we had to spend pretty much the entire alloted meeting time catching him up since his last visit. Also, he liked to hear himself talk, so the meetings he attended typically went WAY over time.

Slightly OT, but that's my big fanaticism with respect to meetings: I don't care if you're in the middle of a sentence, I don't care if you're about three thoughts away from perfecting cold fusion - when the meeting time is over, the meeting is over. A lot of these people have another meeting immediately after, and you're keeping everyone in that meeting sitting on their hands until yours finishes.