Ready to feel ancient, former Beverly Hills, 90210 fans?

Gabrielle Carteris has signed on to guest star on an upcoming episode of Criminal Minds.

The 49-year old actress - yes, 49! - will appear in this season's 17th episode. The hour revolves around Hotch and company tracking a highway serial killer and Carteris will portray the mother of a teenage girl questioned because she crossed paths with the suspected murderer.

90210 fans must remember Carteris as Andrea Zuckerman from the original Fox series.

Since then, she hasn't appeared on TV much, but did has made appearances on Nip/Tuck and Crossing Jordan.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.