Then: Zendaya starred in her first TV role as Rocky Blue in Shake It Up on Disney Channel.

Now: She's currently starring in HBO's Euphoria, Marvel's Spider-Man movies, and a TON of other upcoming movies, including Dune and Space Jam: A New Legacy. Zendaya is also the youngest person to win an Emmy Award for Outstanding Lead Actress in a Drama Series.

Then: He played Lucas in The Impossible.

Now: He's currently playing Spider-Man in the MCU and will be reprising the role for Spider-Man: No Way Home. He's also been in movies like Onward, Cherry, The Devil All the Time, and Dolittle.

Then: He played Gavroche in Les Miserables on Broadway!

Now: He stars in Stranger Things and is currently working on a new movie called Hump.

Then: She played Emily in a few episodes of The Suite Life of Zack and Cody.

Now: She went on to star in The Act and The Kissing Booth movies. She's also set to star in a few upcoming projects like The Kissing Booth 3, A Spark of Light, Camp, and Bullet Train.

Then: She starred in the American Girl movie Grace Stirs Up Success.

Now: She starred in Bizaardvark and currently plays Nini in High School Musical: The Musical: The Series. She's also best known for her song "Drivers License" and has her first EP coming out May 21.

Then: Her first credited role was Olivia Danielson in the movie Imagine That.

Now: She starred on Black-ish and now has her own spinoff, Grown-ish! She also starred in the movie adaptation of The Sun Is Also a Star.

Dove Cameron (2012 vs. 2021)

Then: She played Holly in a few episodes of Shameless.

Now: She starred in Descendants and its sequels, Liv and Maddie (which she won an Emmy for), and Dumplin'. She also released an EP in 2019 and starred in an off-Broadway production of Clueless. She's currently working on The CW's new Powerpuff Girls reboot and will be playing Bubbles.

Then: She played Young Alice in the Once Upon a Time spinoff series Once Upon a Time in Wonderland.

Now: She's starred in Stranger Things, Enola Holmes, Godzilla: King of the Monsters, and Godzilla vs. Kong. She has a bunch of new projects in the works including the fourth season of Stranger Things. Millie also created her own makeup brand called Florence by Mills.

Then: He played Samuel in a short film called Sweet Tooth.

Now: He's starred in movies like Call Me By Your Name — which he got an Oscar nom for — The King, Little Women, Beautiful Boy, and is currently set to star in Dune, The French Dispatch, Don't Look Up, and Bones & All.

Then: She'd just started playing Sansa Stark in Game of Thrones.

Now: She finished her eighth season of Game of Thrones back in 2019, played Jean Gray in X-Men: Dark Phoenix, and married Joe Jonas. They just recently welcomed their first daughter.

Then: She played Alexis in The Gospel.

Now: She's best known for her roles on A.N.T. Farm and Disney's Descendants movies. She currently stars on The CW's Black Lightning.

Then: She played Paula on Law & Order: Special Victims Unit.

Now: She's best known for playing Maya on the series Girl Meets World. She's been in movies like Work It, Tall Girl, Clouds, Horns, and Adventures in Babysitting. She also has a successful pop music career and has released four studio albums and two EPs. She's set to reprise her role in Tall Girl 2.

Then: She played "Girl Customer" in an episode of Monk.

Now: She played Sally Draper in Mad Men and Sabrina Spellman in Chilling Adventures of Sabrina. She's also working on a new series called Swimming with Sharks and a movie called Strangers of Argo Hill.

Then: She appeared in a few episodes of The Guardian.

Now: She's starred in movies like Kick-@$$, Greta, Suspiria, The Miseducation of Cameron Post, Carrie, Neighbors 2, Tom and Jerry, and If I Stay. She also has a bunch of new projects currently in the works.

Then: He played Josh Peters in The Gold Retrievers.

Now: He starred as Peter Kavinsky in To All the Boys I've Loved Before and the sequels. He also starred on The Fosters, appeared in Charlie's Angels, and is set to play He-Man in Masters of the Universe.

Then: She played Caitlin in a Playhouse Disney series called Dance-A-Lot Robot.

Now: She starred in Girl Meets World, appeared in The Goldbergs and Snowpiercer, wrote a book, and spoke at the UN Women and US National Committee's annual conference.

Then: Asa had done a few small background acting gigs before this, but his first big movie role was playing Bruno in The Boy in the Striped Pajamas.

Now: He's been in movies like Hugo, Ender's Game, and The Space Between Us. He currently stars on the Netflix series Sex Education and has a few upcoming projects in the works. Asa is also a successful esports player and competed in the Nintendo World Championships.

Then: She appeared in an episode of Back to You.

Now: Her career really took off after she starred in the Coen brothers' remake of True Grit. She went on to star in Pitch Perfect 2, Pitch Perfect 3, Bumblebee, Spider-Man: Into the Spider-Verse, and Edge of Seventeen. Hailee also has a successful pop music career and has released two EPs. She currently stars on Apple TV+'s Dickinson and will be starring on Disney+'s Hawkeye.

Then: They played young Cataleya in Colombiana.

Now: They've been in movies like The Hunger Games, The Hate U Give, and Everything, Everything. They also starred in the Netflix miniseries The Eddy. Currently they're working on the film adaptation of Dear Evan Hansen.

Then: He played Caleb in a short film called Limbo.

Now: He stars as Ricky on High School Musical: The Musical: The Series and just released his first EP, Joshua Bassett.

Then: She'd acted in a few uncredited background roles before but in 2007, she played Young Jane in 27 Dresses.

Now: She went on to star on shows like Jessie, Bunk'd, and Light As a Feather. She also appeared in The Diary of a Wimpy Kid movies. Currently, she stars on Netflix's Cobra Kai and has a few more upcoming projects in the works.

Then: She started her first season playing Arya Stark on Game of Thrones.

Now: She finished her eighth season of Game of Thrones in 2019 and just starred in The New Mutants. She's also appeared in Gen: Lock, Two Weeks to Live, and Doctor Who. She's currently working on a limited series called Pistol.

Then: She played Leah in a series called Scientastic!

Now: She's currently starring as Betty Cooper in Riverdale, appeared in Hustlers, Chemical Hearts, and Charlie's Angels.

Then: He played Noah in a short called Noah Dreams of Origami Fortunes.

Now: He currently stars in Stranger Things and his Netflix movie Concrete Cowboy just debuted last month.

Then: She played Gwen Thompson in An American Girl: Chrissa Stands Strong.

Now: She's been in movies like Booksmart, Beautiful Boy, and Them That Follow. She has also appeared in Unbelievable, Last Man Standing, and Monsterland. She has a few more projects in the works, including the film adaptation of Dear Evan Hansen, where she'll be starring as Zoe Murphy.

Then: She played Colby Marian Chandler in a few episodes of All My Children.

Now: She's best known for her roles in Big Little Lies, The Society, Blockers, Detective Pikachu, Halt and Catch Fire, Ben Is Back, Freaky, The Map of Tiny Perfect Things, Three Billboards Outside Ebbing, Missouri, and Supernatural. She's currently filming for Ant-Man and the Wasp: Quantumania.

Then: She played young Harmony Faith Lane in Kiss Kiss, Bang Bang.

Now: She's best known for playing Alex Dunphy on Modern Family. She has also done some voice acting and starred in Disney Jr.'s Sofia the First, Minnie's Bow-Toons, and Jake and the Never Land Pirates. She's currently working on a new movie called Don't Log Off.

Then: She played Jubilee in X-Men: Apocalypse.

Now: She starred in To All the Boys I've Loved Before and their sequels. She also starred in Deadly Class, and has a couple movies currently in production.

Then: She appeared as Sadie in Knocked Up.

Now: She's been in movies like Assassination Nation, The King of Staten Island, and This Is 40. She also starred on Ryan Murphy's series Hollywood. Currently, she plays Lexi on Euphoria and is working on a TV series called Pantheon.

Then: He played Kane Jenkins in Shortland Street.

Now: He's currently playing Archie Andrews on Riverdale and has also appeared in I Still Believe, The Hate U Give, The Last Summer, Songbird, and A Dog's Purpose.

Then: He played Young Charles in a short film called Aftermath.

Now: He's starring in Stranger Things and Ghostbusters: Afterlife, and has been in movies like It, It Chapter Two, and The Goldfinch.