My list is short so far, but this thread is intended to hand a little extra grief handed to griefers, which we should all be for. So, throw in your list and I'll add them to mine...

Adams - (66 Hunter) - Zëk: Killed him so many times he lost count. Aug '08

Daegory (70 Warlock) - Wàrhead: The guy Sheheals and crew chased off my corpses in Hinterlands. Aug '08

Dontomek (70 Mage) Zëk: hit hillsbrad and camped lowbies pretty bad. he got me twice...i got him 4 times

Lockshock (~60 Warlock) - Wàrhead: He doesn't know when to quit, I had him yelling and screaming something in WPL. Aug '08

Magelock (70 Frost Mage) - Zëk: Camps Tanaris Sep '08

Mogz - (70 Paladin) - Wàrhead: Camped corpses in Hellfire. Geared and has a title. Not afraid to fight you while you're preoccupied. Aug '08

Will update it with yours.

9/8 Update: alphabetized and added a couple from Blast3r.