Two news bits from EW's Michael Ausiello:
- A. J. Cook is returning to "Criminal Minds" after all - but only for two episodes to wrap up JJ's storyline, the actress tweeted on Friday.
As for Paget Brewster, she will be back "for a siginificant number of episodes", an insider says.
- Katie Cassidy has booked a guest spot on "Gossip Girl" next season. The "Melrose Place" alumna will appear in a multi-episode arc as a student who becomes a love interest for Nate (Chase Crawford).
Her first appearance is right in the season premiere.