You must have heard that everyone on earth has a doppelganger. Some may call it a conspiracy theory, others believe we're all connected. The truth is that we're not that special and unique after all.

Needless to say, celebrities aren't the exception to that rule. In fact, it's not a secret that Hollywood and the movie industry always tend to look for similar profiles when they're casting.

So, let's take a look at 60 celebrities that you and most people on earth often have a tough time telling apart. Sit down, buckle up, and enjoy as we walk you through the 30 celebrities who look alike the most.

30. Millie Bobby Brown and Natalie Portman

Natalie Portman was awarded the Golden Globe Award for Best Actress in a Drama and the Academy Award for Best Actress for her performance in 'Black Swan' and has put together one of the most successful careers Hollywood has ever seen.

Milly Bobby Brown, on the other hand, is conceived as one of the future cinema and TV stars thanks to her role as 'Eleven' on the Netflix series 'Stranger Things'. She already has a strong and loyal fanbase.  

29. Nathan Fillion and Jeremy Renner 

Nathan Fillion is best known for the leading role of Castle in the homonym series. However, he's also had plenty of big roles, like Malcolm Reynolds in 'Firefly' and John Nolan in 'The Rookie'.

Jeremy Renner played Hawkeye in the Marvel Cinematic Universe films 'Thor', 'The Avengers', 'Avengers: Age of Ultron', 'Captain America': 'Civil War, and 'Avengers: Endgame', but he's truly passionate about independent films.

28. Cameron Diaz and Ellen Barkin

Cameron Diaz is one of America's sweethearts. She rose to fame with 'The Mask' and since then starred in countless comedy films. She even became one of Charlie's Angels and broke thousands of hearts when she announced her retirement.

Ellen Barkin may not be as popular as Diaz among younger fans, but she's also had an outstanding career in show business. From her breakout role in 'Diner' to her days as a producer, she's done it all in Hollywood.

27. Bryce Dallas Howard and Jessica Chastain 

Bryce Dallas Howard was primary known for being Ron Howard's elder daughter, but she later gained wider recognition for starring as Claire Dearing in the adventure film 'Jurassic World'.

Jessica Chastain's highest-grossing releases came with the science fiction films Interstellar and 'The Martian' but don't let that fool you, as she's won a Golden Globe Award and was deemed one of the 100 most influential people in the world back in 2012.

26. Will Ferrell and Chad Smith

You may know Chad Smith for being Red Hot Chili Peppers' legendary drummer. I mean, the guy can't go literally anywhere on earth before dozens of fans ask him for pictures and autographs.

On the other hand, Will Ferrell is one of the most iconic cast members on NBC's Saturday Night Live. He's also made a name for himself as a top-notch stand-up comedian, producer, actor, and even writer.

25. Courtney Cox and Demi Moore

We all know Courtney Cox for her breakout role as Monica Geller in the iconic sitcom 'Friends'. She hasn't had any other significant role ever since impersonating Gale Weathers in 'Scream', but she still has plenty of worldwide recognition.

Demi Moore is one of Hollywood's most beloved and respected girls. She's won multiple awards for her roles in blockbuster success like 'Ghost', 'A Few Good Men', 'Disclosure', 'Striptease', and 'Bobby'.

24. Zooey Deschanel and Katy Perry

When Katy Perry burst onto the fame back in 2007 with her hit single 'I Kissed a Girl', many people thought we were seeing double because she is the spitting image of '500 Days of Summer' actress.

However, even though it seemed like a Hannah Montana - Miley Cyrus kind of situation, they're not the same person. Zooey Deschanel's more known for her role in 'New Girl', although she's also a great singer, though.

23. Mark Wahlberg and Matt Damon

Mark Wahlberg was the world's best-paid actor in 2017. That's mostly because of his great roles in 'All The Money In The World' and the 'Transformers Saga'. He truly earned every single penny.

Matt Damon received a star on the Hollywood Hall Of Fame and is one of the highest-grossing actors of all time. Notably, he's also one of Whalberg's closest friends, and it's pretty usual to see them hanging out at Boston Celtic's games.

22. Mila Kunis and Vannesa Hudgens

Mila Kunis' breakout film role came in 2008 while playing Rachel in the romantic comedy 'Forgetting Sarah Marshall'. However, most people remember her for her role as 'Jackie' in That 70's Show.

Vanessa Hudgens rose to fame in the 'High School Musical' film series started in 2006 and she's become one of Disney's most famous girls of the past couple of decades. The sky seems to be the limit for her.

21. Elijah Wood and Daniel Radcliffe

Elijah Wood is best known for his portrayal of Frodo in the 'Lord of the Rings' film trilogy. He became one of the world's most famous young men for that role, but he's done plenty of independent films ever since.

Daniel Radcliffe is a world-famous actor thanks to his role in the 'Harry Potterfilm series, and is kind of funny and ironic how much they look alike considering how much fans tend to argue about which saga is the best.

20. Taylor Swift and Karlie Kloss

Taylor Swift is one of the most polarizing artists of our time. Some love her, some hate her, but nobody can deny the fact that she's found plenty of success in the pop music industry over the past couple of years.

Still, we must not mistake her with Karlie Kloss, an American fashion model and one of the most prominent figures in the fashion industry of the last decade and a half. They're incredibly similar.

19. James Franco and Theo James

James Franco was nominated for an Academy Award for Best Actor after starring in '127 Hours' but he's proven to be one of the most versatile actors in Hollywood. Drama, action, comedy, he can do it all.

Theo James, on the other hand, played Detective Walter William Clark, Jr. in the crime-drama series 'Golden Boy'. He's now one of Hollywood's rising stars after starring in the 'Divergent' saga as well.

18. Ashton Kutcher and Jared Haibon

In 2015, when and Jared Haibon was on season two of 'Bachelor in Paradise', Ashton Kutcher tweeted a picture of him standing next to a TV still of Haibon's face. The resemblance is clear and undeniable.

However, Haibon is far from having the career Kutcher has had. He went from being Kelso in 'That '70s Show' to becoming one of America's sweethearts and starring in several comedy-romance films.

17. Penelope Cruz and Salma Hayek

Salma Hayek and Penelope Cruz starred together in the 2006 comedy 'Bandidas' and have been an integral part of each other’s lives ever since. And let's be honest, you've also thought they're the same person.

Hayek and Cruz had made a living out of impersonating hot, sexy, and independent Latina women in Hollywood. Even their voices sound pretty similar, so there's no shame in mistaking one for the other every now and then.

16. Nina Dobrev and Victoria Justice 

Nina Dobrev was born in Bulgaria and has her breakthrough in 2009 with her role as Elena Gilbert in 'The Vampire Diaries'. However, she was first known as Mia Jones during her days at 'Degrassi'.

Meanwhile, Victoria Justice rose to fame on Nickelodeon in the 2000s, starring as Lola Martinez on 'Zoey 101' and later as Tony Vega on 'Victorious'. She's now pursuing a career in the music industry.

15. Young Mick Jagger and Harry Styles

In 2012, Mick Jagger said that One Direction reminded him of the early years of the Rolling Stones. Four years later, reports have emerged that Harry Styles could play The Rolling Stones‘ frontman role in a new biopic about the band.

Needless to say, One Direction was never going to find the same kind of worldwide success the Rolling Stones had. But they were a huge sensation among teenagers before their breakup in 2016.

14. Sienna Miller and Mollie King

Sienna Miller was nominated for the BAFTA Television Award and the Golden Globe Award for her role as Tippi Hedren in the television film 'The Girl'. She's also starred in 'Foxcatcher' and plenty of independent films.

As part of The Saturdays, Mollie King has made it to the top-ten of UK Albums Chart ten times. She also made it all the way to UK's  no.1 with the hit 'What About Us' on the UK Singles Chart. 

13. Alicia Silverstone and Kristen Stewart

They both became stars in the teen years. Alicia Silverstone decided to step out from the spotlight after the filming of 'Batman and Robin'. “They would make fun of my body when I was younger,” she says.

Kristen Stewart, on the other hand, was the highest-paid actress in the world in 2010 and 2012; so that should tell you just enough about how famous she was after starring in the 'Twilight' saga.

12. Prince Harry and Ed Sheeran

After quitting the Crown, the Duke of Sussex started showing himself more like a celebrity. Prince Harry has always been a bit of a rockstar, so the media has always loved being around him.

Ed Sheeran became one of the world's biggest sensations and beloved people for his catchy tunes and romantic lyrics, and several people have pointed out his resemblance with Harry. Believe it or not.

11. Javier Bardem and Jeffrey Dean Morgan

"Are Javier Bardem and Dean Morgan the same person?" is a frequent question in Google. However, the Spanish actor is 51 years old, meanwhile, the other one is 54 and was born in Washington.

Truth to be told, Bardem would've been an excellent choice for 'The Walking Dead', as he's made a living out of his dark, scary characters. He could've kicked plenty of zombie ass if you ask me.

10. Carly Rae Jepsen and Jessica Biel

Carly Rae Jepsen's breakthrough came in 2012, with her single "Call Me Maybe". She wasn't able to ride the way for much longer but hey, she'll always have that one-hit-wonder to brag about.

Jessica Biel, on the other hand, has found plenty of success as an actress, model, singer and even producer, as she was the executive producer and star of the USA Network series 'The Sinner'.

9. Heath Ledger and Joseph Gordon-Levitt

Heath Ledger became one of Hollywood's most legendary people ever. His role as The Joker didn't only make him incredibly popular but it also paved the way for dozens of conspiracy theories about his death.

Joseph Gordon-Levitt hasn't starred in that kind of role yet but he definitely looks like he could play Ledger on a biopic. He looks like his younger brother and ironically, they actually became pretty close friends.

8. Kathryn Dennis and Emma Stone

Born in North Carolina, Kathryn Dennis has a very long career as a model. Meanwhile, Emma Watson has been working as an actress since she was 11 years old. She is also an activist for the movement HeForShe.

Dennis isn't nearly half as successful as Watson but she's claimed to be mistaken with her dozens of times over the course of the years. Obviously, not every day you come across someone who looks exactly like Hermione Granger.

7. Zach Braff and Dax Shepard

Two years ago, Zach Braff shared face-swapped photos of him and Dax Shepard, and the two look nearly identical. I mean, it was kind of cringe but it definitely showed the resemblance between the two.

Shepard has found more success as a director, host, and producer than as an actor, while Zach Braff will always be remembered for his iconic role as J.D. on the legendary sitcom 'Scrubs'. Eagleeeee.

6. Jordana Brewster and Demi Moore

Well, looking at Demi Moore twice on this list could make us think that she just has a common face. That's not the case, it's just that, let's face it, every girl on earth would love to look just like Demi Moore.

Luckily for her, Jordana Brewster can brag about that. Moreover, she can also brag about being quite a successful model and actress, as you may know by her role as Mia Toretto in 'The Fast And The Furious'.

5. Emma Mackey and Margot Robbie

Emma Mackey born in France and became mainstream in 2019 thanks to her role as Maeve in ’Sex Education'. Margot Robbie was born in Australia and had her breakthrough in 2013 in the role of Naomi Belfort in 'The Wolf of Wall Street'.

But more than just looking alike physically, they have pretty similar personalities as well. They're both quite humble and charismatic but can personify badasses and independent women that will kick your ass if needed.

4. Sarah Hyland and Mila Kunis

Sarah Hyland has been also mistaken for Marion Cotillard and Lucy Hale. But make no mistake, she's built a path of her own thanks to her roles in 'Private Parts', 'Annie', and 'Blind Date'.

Mila Kunis, now 36, gained the world fame for her performance in the psychological thriller 'Black Swan', proving that he was more than just a pretty face and that she was not afraid of living her comedy series past behind her.

3. Carla Bruni and Bella Hadid

Some people argue that all models look the same and if you showed them a picture of Carla Bruni and then one of Bella Hadid, they'd be even more convinced. They were both cut with the same cloth.

Bruni made a name for herself in show business but rose to fame when she made former French president Nicolas Sarkozy. Bella, on the other hand, won multiple Model of the Year awards for her work in the runway.

2. Chelsea Handler and Elizabeth Banks

Elizabeth Banks is more known nowadays for her role as Effie Trinket in 'The Hunger Games' saga, while Chelsea Handler continues to succeed with her talk-shows. However, many people can't truly tell who's who.

On a related note, Banks even admitted that they always get mistaken for each other. Sometimes it even happened during a dinner in the White House. That's just unbelievable, C'mon!

1. Jesse Eisenberg and Michael Cera

Jesse Eisenberg rose to fame for his role as Mark Zuckerberg in 'The Social Network' and he's done pretty similar roles ever since. He's always a bit of an outsider, a shy teenager that mostly flies under the radar.

The same can be said about Michael Cera, who's first taste at fame came with 'Arrested Development' and found plenty of success with roles in comedy films for teenagers like 'Juno' and 'Scott Pilgrim vs. The World'.