Return Of An Old Vampire in 'Supernatural'

Season 6 has featured plenty of familiar faces on Supernatural, with returns from Azazel, Tessa, Samuel, Meg and more. But now then show is digging deep and bringing back a face that might not be so familiar unless you're a true fan.

Jim Beaver recently tweeted that he's filming a scene for the 19th episode of the season, tentatively scheduled for April 29, with Amber Benson, aka Tara from Buffy the Vampire Slayer.
So, do you remember Lenore the vampire?

If not here's a refresher. Back in season 2's "Bloodlust," Sam and Dean met Lenore, a vampire who led a group that vowed not to harm humans and only wanted to live peacefully. Unfortunately, the evil Gordon Walker had other plans and tried to kill her, but she was saved and sent off to live her human-loving life.So why is Lenore back? Earlier this season we saw the Alpha Vampire trying to recruit more vampires to build an army for a mysterious ultimate plan. Odds are good that this episode will continue that storyline.Also, the episode is currently titled "Mommy Dearest," so I'm willing to bet all the money in my bank account that the Mother of All is also involved. Since it's one of the last episodes of the season, I'm guessing that her big master plan is going to be in full effect by this episode.What do you think of Lenore's return, and if you could bring back another single-episode character from the past, who would it be?