CSI Guest Stars
Tony Curtis
Starred as himself in the season 5 episode "Grave Danger (1)" . In the scene at Sam Brauns Casino here Catherine goes to ask Sam for ransom money to get Nck released.
Faye Dunway
Starred as Lois O'neil in the season 6 episode "Kiss-Kiss, Bye-Bye" an ageing socialite with decades old ties to the Las Vegas Mob. Her life is threatened after she writes a tell-all book about her life. Also a waiter who was trying to rob her is killed in her room while she is hosting a party. The CSI's investigate th case which has a surprising but sad twist at the end.
John Mayer
Starred as himself performing at a concert in a club in the season 7 episode "Built to Kill (1)". During the concert Catherine who has attended the concert with Nick, has her drink drugged and she is then abducted and left in a sleasy motel room only to wake up wondering if she has been raped.
Sean Young
Starred as Dusty, the ex-wife and mother of th eldest son of washed up murdered rock star Izzy Delancy in the episodes "Built to Kill (1) & (2).
Izzy was the first victim of the miniature killer Natalie Davis.
Roger Daltry
Starred as ageing mobster with many disguises Mickey Dunn who had been missing for years after murdering a police officer in the season 7 episode "Living Legend"
Taylor Swift
Starred in the Season 9 episode Turn, Turn, Turn as Hayley Jones, a disgruntled teenager who is eventually killed by her adoptive mother.
Elliott Gould
Starred in the season 11 episode "Pool Shark" as Earnest Boozell, a casino mogul who crosses paths ith the CSI's after one of his casino's becomes a crime scene.
Justin Bieber
Starred as Justin McCann in two seaosn 11 episodes "Shock Waves" and "Targets of Obsession" as a member of an anti-government terrorist organziation who are planting bombs in order for their message to be heard.