Lily van der Woodsen needs a new sister! 
TVLine's Michael Ausiello reports that Illeana Douglas had to drop out of the role of Lily’s sis, Carol, because of a scheduling conflict.

The actress was selected for the Gossip Girl guest role because of her likeness to Krysten Ritter, who played young Carol in “Valley Girls,” a Season 2 Gossip Girl flashback episode.

Who should replace Illeana? Sound off in the comments below!

Source: TVLine