The Magnificent Archibalds
Thanksgiving in the Waldorf household finds Blair upset that her mom's (recurring guest star MARGARET COLIN) new boyfriend, Cyrus (recurring guest star WALLACE SHAWN), has decided to ruin all her favorite traditions, but that's nothing compared to what will happen next. Lily finds herself trying to broker a peace treaty between Rufus and Jenny who is prepared to cut off all communication with her father if she doesn't get her way. Serena isn't quite ready to come clean with Aaron (recurring guest star JOHN PATRICK AMEDORI) about her complicated past, but Dan ends up accidentally revealing a few tidbits of his own. Blair and Chuck come to their friend's aid when Nate is once again forced to confront his father's (recurring guest star SAM ROBARDS) abandonment. Finally, Eric discovers a secret that Bart (recurring guest star ROBERT JOHN BURKE) has been keeping from Lily.