9 Unforgettable CSI Celebrity Guest Stars
How do you land a guest-starring role on your favorite TV show? If you're Swift, you simply ask for one. The superstar got to play a key part in the season 9 episode "Turn, Turn, Turn" (2009) as a troubled teen who might be more involved with the series of murders at the seedy hotel where she lives than she originally lets on. Now you know where the inspiration for all of her dark, dark-haired alter egos comes from.
Beliebers everywhere tuned in to see the singer make his acting debut in season 11 (2010/2011) as Jason McCann, a serial bomber with a vendetta against the cops. But while Bieber's performance as the brainwashed teen earned him positive attention from fans and critics, it was his backstage antics that actually earned him a spot as one of CSI's most memorable guest stars of all time (at least if you ask series regular Marg Helgenberger).
Post-Britney, but pre-Celebrity Fit Club, K-Fed landed a small role on one of the most important CSI episodes in its run, season 7's "Fannysmackin" (2006). The former Mr. Spears played Cole Tritt, the leader of a gang dedicated to beating up random passerby for fun, who end up attacking Greg (Eric Szmanda).
If you're lucky enough to get Mayer your show, you don't want to mess with a good thing. So it's no surprise, then, that his season 7 CSI guest spot in 2006 focused on what he does best: setting the mood by performing at a club. Sure, he didn't get to do any real acting, but he also wasn't suspected of killing anybody.
CSI has had plenty of rock 'n' roll legends stop by its crime lab, but none of them compared to the prince of darkness, Ozzy Osbourne, who played himself in 2013's season 13 finale. (After all, no character the writers could come up with could possibly be more outrageous than the rocker.) Even though he didn't do any acting, Osbourne did get to rock out, and even broke out a brand new Black Sabbath song for the occasion.
Everyone knows that two Osbournes are better than one – including, apparently, the CSI team, who brought Sharon on to show of her acting chops in season 15 in 2014 as a high-powered businesswoman who made her fortune through questionable means. Sadly, none of her famous dogs joined her on-screen, but at least there's still one season left for Mr. Chips and Mini to make their acting debuts.
The former American Idol winner is more familiar with red carpets than crime scenes, but Sparks still got to have a bloody good time when she landed a role on her favorite crime drama in 2013. And how, exactly, did she find a way to choose between getting to play a suspect or a victim when she appeared in season 14? By getting cast as a very suspicious victim who got to experience both sides of the interrogation room.
Before she brought her reign of terror to the big screen in The DUFF, Thorne got to practice her mean girl act with season 15's "The Book of Shadows" (2014). While you may have thought that she couldn't possibly be more horrible than when she was bullying Mae Whitman, at least she wasn't a murder suspect that time around. Apparently, this Disney starlet has quite the dark streak.
Just because he decided to leave his reality show behind didn't mean McDermott was ready to say goodbye to television for good. Instead, Mr. Tori Spelling gave acting a shot with a super-creepy guest spot on season 15's "Dead Woods" (2014). We're sure his wife was very glad that this TV appearance had nothing to do with reality.