09/03/2013 07:48 pm ET

Jason Priestley Joins 300th Episode Of 'CSI'

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Jason Priestley will help "CSI" celebrate its 300th episode on Oct. 23.

The former "Beverly Hills 90210" star will make a guest appearance in the episode as a casino mogul. Here’s the deal: He once threw the most lavish parties in Las Vegas, until a scandal tainted his reputation and now he’s a recluse. He is the heir to a classic movie studio empire, a lover of film magic, and apparently he’s looking to believe in his dreams again!


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