LOS ANGELES, Aug. 20 - Jessica Lucas ("The Covenant," "She's the Man") will guest star on four episodes of CSI: CRIME SCENE INVESTIGATION, beginning Thursday, Oct. 11 (9:00-10:00 PM, ET/PT) on the CBS Television Network.

Lucas plays Veronica Lake, aka "Ronnie," a young, vivacious, curious and smart new CSI in training who chose to go to Vegas because of the increase in crime rates there.

Lucas's credits include the feature films "Split Decision," "The Covenant" and "She's the Man." She has appeared on the television series "Secrets of a Small Town," "Life As We Know It" and "The L Word."

On the web: www.cbs.com/primetime/csi/