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    21 Famous People You Probably Didn't Realise Appeared In These TV Shows

    It's safe to say that everyone has been in CSI.

    1. Long before she won any Academy Awards, Jennifer Lawrence played a girl whose mum was shot dead in Cold Case.

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    The woman who played her mum in the episode also played Katniss's mum in Hunger Games. What a coincidence!

    2. A young Idris Elba made a quick appearance in British comedy show Absolutely Fabulous.

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    He played an escort who made some bold hat choices.

    3. Jennifer Aniston played a charming hospital volunteer in an episode of the sci-fi show Quantum Leap.

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    Her appearance as Kiki Wilson aired the same year as Friends started.

    4. Meanwhile, Matthew Perry played a tennis prodigy in the first season of Beverly Hills 90210.

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    He was only in one episode but he had quite the storyline — the son of one of the richest men in the OC who ended up being admitted into a psychiatric facility.

    5. Emilia Clarke's first TV role was on the daytime soap Doctors.

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    She played a uni student who was being stalked by her own dad.

    6. We all know that Ryan Gosling was a Disney kid, but he was also in an episode of Goosebumps.

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    In the wittily named episode "Say Cheese and Die," he played a kid who loves taking photographs but is convinced his camera is cursed.

    7. Pre Step-Up Channing Tatum rocked this look in an epsiode of CSI: Miami.

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    Channing played a wannabe rapper who may or may not have stolen a boat.

    8. And Taylor Swift was in an episode of CSI, which is pretty random.

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    A young Tay Tay played a teenager who, in classic CSI fashion, was murdered.

    9. Before she was Annaliese Keating, Viola Davis was also in an episode of one of CSI's many iterations.

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    She played an attorney in CSI: Crime Scene Investigation. Foreshadowing much?

    10. Lady Gaga played a girl who led Tony's son astray in The Sopranos.

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    She was only 15 when she made her appearance and her role was uncredited.

    11. Olivia Colman had a tiny role in the original version of The Office.

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    She proved her comedy genius when she played Helena, a journalist writing a piece on David Brent.

    12. Like many other Canadian stars, Shay Mitchell made a lil' appearance in one episode of Degrassi: The Next Generation.

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    She was a high school dropout turned model.

    13. A fresh-faced Brie Larson was in one episode of Ghost Whisperer.

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    She played a student at a haunted high school.

    14. Lil' Leonardo DiCaprio had one uncredited role in Roseanne.

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    He had no lines, and it was a bit of "blink and you'll miss it" kinda role.

    15. Way before Get Out, Daniel Kaluuya was in an Easter special of Doctor Who.

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    His character, Barclay, was stuck on a random planet after the bus he was on went through a wormhole.

    16. Adam Driver played a creepy guy in Law & Order.

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    His shady character Robby was arrested for murder. He also played another creepy guy in Law & Order: SVU.

    17. Brad Pitt was in four episodes of Dallas back in the day.

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    He played Randy, Charlie's boyfriend.

    18. Tiffany Haddish had a little part in the Disney classic That's So Raven.

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    She played a tour guide in a biodome, and even though her character didn't even have a name, she was just as funny back then.

    19. One of Rooney Mara's first acting roles was in ER, as a woman who abandoned her baby.

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    She appeared in two heartfelt episodes alongside Angela Bassett.

    20. Long before she was kicking ass, Chloë Grace Moretz was in two episodes of Desperate Housewives.

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    She played Sherri, a beauty pageant contestant who was caught in the crossfire of one of Gaby's scheming plans.

    21. And finally, before he was being a creep in YOU, Penn Badgley played a bully in Will And Grace.

    NBC / Cindy Ord / Getty Images

    It was his first-ever role, and he looks almost unrecognisable.

    Whose bit-part do you remember? Let us know in the comments!

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