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its pretty hard to decipher from the above picture, but ABC have confirmed the above as:
Faraday, Boone, Miles, Michael, Ana Lucia, Charlotte, Shannon, Desmond, Eko, Kate, Jack, Sawyer, Locke, Ben, Sayid, Libby, Sun, Jin, Claire, Hurley, Juliet, Charlie, Frank, Richard, Bernard and Rose
I am so fucking excited. Round up of Lost, Heroes, Fringe, Doctor Who and Torchwood's panels below...

LOST
Beginning with the best, the Lost panel was pretty revelatory.
In short (from DarkUfo):
1) Parallel with S1 and S6 - DL confirms many characters from season one!
CC: Says there is a way of discovery that they will have in play in S6
2) Faraday confirmed for S6!!
3) Will we see flashbacks to characters' childhood? CC says S6 will be different. CC won't describe what that point of difference is.
4) Richard Alpert's backstory is "involved"
5) DL: Juliet WILL be in final season.
6) Q: Is Man in Black's name "Esau?" Emerson: Might be too literal--but I like the way your mind works.
7) Food drop in S2 finale might be covered... DL: "Something we'll try to address."
8) We won't see much DHARMA in S6
9) Jacob has NOT appeared as another character on the show.
10) Dominic Monaghan appeared on the panel!!!!
Read Doc jensens write up here

The major talking point was of course the virtual confirmation that Charlie (and I suspect all the characters in the above poster) will be in Season 6. I am so excited to see how this is going to work and how major their roles will be. I think Season 6 is going to be epic beyond all proportions.
Emerson, Garcia and Holloway were all at the Panel, and from the clips I've seen, were all on top form. Emerson even read a fake script from Heroes and declared "what the fuck is this?". Legend.
Here is the death reel that preceded Monaghans appearnce:


Heroes
In comparison, the Heroes panel was pretty dull...
here is a promo for season 5, Redemption:

looks like they are going ti create some new mythology again with the stupid compass thing. Gurnberg and Qinto are far too good for this show! I hope Sylar breaks out of Nathans body early on so I dont have to watch Adrian Pasdar "act" for too long.

Fringe
What we learned:

• Kirk Avecedo (Charlie Francis) will be on season 2 extensively
• Leonard Nimoy will return in the premiere to play William Bell
• Pinkner virtually admitted the original plan to make the show very accessible to all audiences was now out the window. :D

• John Simm will return as the master in the Christmas special(s)
• Donna and Wilf will also return!
• River Song will return next season, in some of Matt Smiths first few episodes.
• New Waters of Mars preview clip! watch here