Kirsten Vangsness, who stars as Penelope Garcia in the CBS drama CRIMINAL MINDS, will also join the midseason series CRIMINAL MINDS: SUSPECT BEHAVIOR as a series regular. Garcia, a computer wizard who helps research cases, will play the same role and support the "Suspect Behavior" BAU team headed up by Special Agent Sam Cooper, played by Academy Award-winner Forest Whitaker.

"Our Darkest Hour" -- Agents Jareau (A.J. Cook, left) and Hotchner (Thomas Gibson, right) work with the rest of the BAU team to find a serial killer who preys on his victims in the dark, the fifth season finale cliffhanger of CRIMINAL MINDS, Wednesday, May 26 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Monty Brinton/CBS ©2010 CBS Broadcasting Inc. All Rights Reserved.

"The Fight" -- Agents Hotchner (Thomas Gibson, second left) and Prentiss (Paget Brewster, center) work with a separate group of BAU operatives led by Agent Sam Cooper (special guest star Forest Whitaker, right) and including Mick Rawson (Matt Ryan, left), while investigating a string of murders in San Francisco, on CRIMINAL MINDS, Wednesday, April 7 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Monty Brinton/CBS ©2010 CBS Broadcasting Inc. All Rights Reserved.

Actors Thomas Gibson, Matthew Gray Gubler, Kirsten Vangsness, Joe Mantegna, Paget Brewster, Shemar Moore, and A. J. Cook at the 100th Episode Cake Cutting on the set of CRIMINALS MINDS in Los Angeles, CA.Photo: Mark Davis/CBS ©2009 CBS BROADCASTING INC. ALL RIGHTS RESERVED

Rock star Gavin Rossdale will guest star on an episode of CRIMINAL MINDS this fall on the CBS Television Network.

Rossdale will play a Goth rock star who has become lost in the frightening alter-ego he portrays on stage - an alter-ego whom the BAU team suspects may be a brutal serial killer.

Rossdale was last seen in the independent feature film "How to Rob a Bank."  Previously, he appeared in the films "Constantine," "Little Black Book" and "Game of their Lives."  Rossdale first attained worldwide fame as the lead singer/songwriter for the UK post-grunge rock band Bush. Their first album, "Sixteen Stone" (1994), was a huge commercial success.  Almost overnight, Bush went from playing small pubs in London to headlining arenas in the US, the result of extensive, non-stop touring.  The band went on to produce three more albums together.  Rossdale was featured on the Sony Pictures XXX soundtrack in 2002 with a song called "Adrenaline."  The song was also the official theme song for World Wrestling Entertainment (WWE)'s "Unforgiven" pay-per-view event in September 2002 and was used in the ending credits of "Terminator 3: Rise of the Machines." Additionally, he has just completed his International Tour on his latest solo album, "Wunderlust."  Rossdale resides in Los Angeles with his wife, Gwen Stefani, and their two sons.

"Faceless, Nameless" -- While Agents Rossi (Joe Mantegna, left), Jareau (A.J. Cook, center) and Morgan (Shemar Moore, right) profile a killer who is targeting an emergency room doctor, they quickly come to the realization that Hotch is missing, on the fifth season premiere CRIMINAL MINDS, Wednesday, Sept. 23 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS ©2009 CBS Broadcasting Inc. All Rights Reserved.

"The Big Wheel" -- Alex O'Loughlin ("Moonlight") guest stars as a serial killer who sends a videotape of one of his crimes to the BAU team in an effort to stop his own crime spree, on CRIMINAL MINDS, Wednesday, April 29 (9:00-10:00 PM, ET/PT on the CBS Television Network.

Photo: Sonja Flemming/CBS ©2009 CBS BROADCASTING INC. ALL RIGHTS RESERVED