Veronica Mars alum Kyle Gallner and Californication's Madeleine Martin will guest-star in an upcoming episode of Criminal Minds to be directed by star Matthew Gray Gubler, TVGuide.com has learned exclusively.Paget Brewster's first exit from the show. (Brewster announced earlier this week that she will leave again at the end of the season.)Smallville as Bart Allen and on CSI: NY as Mac's stepson. Martin stars as Hank's daughter, Becca, on Californication, which is currently in its fifth season.Criminal Minds airs Wednesdays at 9/8c on CBS.
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