Herbert, the creepy old man in Family Guy, sounds EXACTLY like the lead singer of Radiohead. Listen first to this Radiohead song, sung by Thom Yorke:

Now Herbert:

I don’t think I can listen to my “Best of Radiohead” CD quite the same way again.

24 Hours Vancouver has a really good interview up with Mike Henry, one of the original Family Guy writers and also the voice of many of the characters on the show, including Cleveland Brown, Herbert the Pervert, Bruce (the effeminate voice guy), and the Greased Up Deaf Guy. Here’s a snippet:
Were there story ideas that the Fox censors just wouldn’t allow?
Henry: They really kind of let us do a lot. There are words and horrific sexual slurs that you can’t say on TV which we all understand – they’re funny when you hear them, but you can’t say them …read more

One of my most guilty pleasures is Herbert the Creepy Old Man.