Criminal Minds is losing a key cast member, but not without a fitting farewell. We'll see how A.J. Cook is let go next week.
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A.J. Cook and Thomas Gibson in a photo from the September 29, 2010 episode of Criminal Minds. "JJ" bids farewell to A.J. Cook.
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Thomas Gibson in a photo from the September 29, 2010 episode of Criminal Minds. "JJ" bids farewell to A.J. Cook.
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JJ (AJ Cook) bids farewell to Criminal Minds September 29. Here's a shot from her final episode.
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Criminal Minds Season 6 Episode 2 Quotes

(Reid grabs a bottle of antacid from Prentiss' desk and takes one)
Prentiss: Again with the dairy?
Reid: I can't help it. I love dairy.

Prentiss: I don't think it's about the case.
Garcia: Do you know something?
Prentiss: Do I know something?
Garcia: She just repeated the question. You always say that's a sign.
Morgan: Do you know why JJ's in there?
Prentiss: I have no idea.