The character Georgina Sparks is portrayed by actress Michelle Trachtenberg.
In reality, georgina is Michelle Tratchtenberg. In the show, she is an old friend of Serena's. She has appeared in various episodes in Seasons 1, 2 and 3. In Season 1, she came back to mess with...
Georgina sparks is Serena's old friend from before she went away. she is a bad girl and she tries to get Serena to go back to her own ways
In season 5 episode "G.G." at the end we see Georgina typing a post on Gossip Girl's blog. So, yes, I guess she is our Gossip Girl.
she is played by Michelle Trachtenberg