Episode 300 of CSI: Crime Scene Investigation will feature a guest appearance from Jason Priestley. (Spoilers after the jump!)
According to Entertainment Weekly, Priestley will play a casino mogul in the milestone episode, “Frame by Frame”, which is the fifth episode of season 14. Priestley’s character is also the heir to a movie studio empire, and he used to throw the most lavish parties in Vegas. Unfortunately, a scandal ruined his reputation, and he became a recluse—but he’s hoping to reclaim his old dreams. The 300th episode will air October 23 on CBS.