Melrose Place alum Grant Show will be guest starring in the upcoming episode of season 10 of Criminal Minds.

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While little is known about the character Show, he might be joining the team in solving a case relating to frozen bodies found floating in the water in Nevada. JJ (A.J. Cook) will also be a point of focus in the episode, which is titled, The Frozen People. JJ's post traumatic stress disorder -- which was spurred by her abduction in the last season -- will start acting up.

In December, TVGuide revealed this bit of information, courtesy the CBS procedural's executive producer Erica Messer. The producer stated that while the haunting won't necessarily cause trouble in the work area it will resurface in other ways as "it's coming out in unexpected ways. She's kind of internalizing it."

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Here's the official synopsis for the episode:

"When frozen bodies are found in Nevada floating in water, the BAU's investigation leads them to suspect that the victims were part of a cult that could be behind the deaths. Also, JJ (A.J. Cook) confronts old demons from her abduction and torture last year. Grant Show guest stars. Faran Tahir returns as Tivon Askari, who abducted JJ last year."

The Forever People will air on January 14, 2015 on CBS.

Watch the preview of the latest episode Amelia Porter here: