I'm a bit surprised that James Olsen didn't get a mention. As much of a trouble magnet as that guy is, you'd think the Guide might want to warn hitchhikers to stay out of his immediate presence. Plus, bowties.

Ebony the Black Dragon

Doctor: I wear bowties. Bowties are cool, now.
Jimmy: I KNOW! I've been trying to tell people that for years!

"Life is like an anole. Sometimes it's green. Sometimes it's brown. But it's always a small Caribbean lizard."