With so many celebrities in Hollywood, it's no surprise that a few of them are mistaken for one another. Fans have countlessly mixed up celebrities because they look so much alike, it is scary.

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Fans have regularly mistaken stars like Amy Adams and Isla Fisher for one another, even though the two celebs have different eye colors and different shades of red hair. Then there is Henry Cavill and Matt Bomer, both stars who have identical facial structures and jawlines, making them look bizarrely the same. And, let's not even forget to mention actresses Nina Dobrev and Victoria Justice, two stars who pretty much know they could be sisters.

These 10 pairs of stars below look so much alike, it's as if fans are seeing double.

10 Bryce Dallas Howard & Jessica Chastain

Bryce Dallas Howard is best known for her roles in the Jurassic World films and she is the daughter of famous movie director Ron Howard, while Jessica Chastain is also known for her work in movies including The Help, where she was nominated for Best Actress in a Supporting Role at the 2012 Oscars. Both stars are highly successful and it is bizarre how close the two women look like one another.

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Both actresses are known for their red hair, fair skin, and when they wear their signature red lips, it's hard to tell them apart. Chastain told Entertainment Tonight that Howard's director father spotted her at an Apple store and thought she was his own daughter.

9 Amy Adams & Isla Fisher

Another pair of red-headed actresses that look like they could be sisters are Amy Adams and Isla Fisher. The two are constantly compared to one another because they look so much alike.

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Fisher even released a humourous PSA to let people know she is not Amy Adams. On Jimmy Kimmel Live! she shared the video stating that there's no way the two should be confused for one another because they have different hair colors. "Amy Adams has auburn red [hair]. My hair is light auburn red."

8 Henry Cavill & Matt Bomer

Matt Bomer and Henry Cavill bear such similar resemblances to one another, many people can't tell who is who. The two actors are in no way related to one another but are both successful actors and extremely good looking.

Bomer is most known for starring in the television show White Collar, but he has also been in many films like The Texas Chainsaw Massacre: The Beginning, Magic Mike and Mike XXL. Henry Cavill is known for his coveted Clark Kent role in Man of Steel and Batman vs. Superman: Dawn of Justice. 

7 Katy Perry & Zooey Deschanel

Katy Perry and Zooey Deschanel know they look a lot alike and the songstress even had the New Girl actress star in her music video for the song "Not The End of the World." In the video, Deschanel gets abducted by aliens, who believe she is Katy Perry.

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Perry also revealed while on an Instagram Live chat with Deschanel that she used to claim she was the actress to get into nightclubs in Los Angeles. Perry shared, "I was pretty much a nobody, and you were like just getting so huge at the time, it was like Zooey Deschanel ran the world. In that moment, I was so complimented to look like you."

6 Nina Dobrev & Victoria Justice

Many fans think Nina Dobrev and Victoria Justice are related because they look like they could be sisters. Justice told MTV that people have always mistaken her for The Vampire Diaries star, sharing, "Dude! You don't understand, I get this every single day...Everyone always confuses me for her."

The two stars are also very close in age, with Dobrev being 31 and Justice 27. So, it's no wonder that people think they could be sisters, besides their very similar appearances.

5 Thandie Newton & Zoe Saldana

thandie newton and zoe saldana
via: pinterest

Zoe Saldana has been in countless movies including Avatar, Guardians of the Galaxyand Star Trek, but some fans, and even her own mother, have mistaken her for starring on HBO's Westworld. 

In an interview with James Corden, the actress admitted that her mom praised her for her work in Westworld, but it stars actress Thandie Newton, who looks just like Saldana. "My mom still thinks that I'm in Westworld. I'm like, 'Years ago you thought that I was in Traffic. Mom, you did not give birth to Thandie Newton.'"

4 Drea De Matteo & Portia De Rossi

drea de matteo and portia derossi
via: pinterest

Portia de Rossi may have found her missing twin. The Arrested Development star and the Soprano actress Drea de Matteo look like long-lost sisters and not only are the stars only one year apart, they also have a very similar last name.

The actresses have very identical physical features, especially when they are both rocking blonde locks. While Rossi and Matteo haven't publicly spoken about how much they look alike, we're pretty sure it has come up in conversation for both of them once or twice.

3 Will Ferrell & Chad Smith

will ferrell and chad smith youtube twins
via: youtube.com

Will Ferrell and Red Hot Chill Peppers drummer Chad Smith have constantly been told that they resemble one another. The two stars made an appearance on The Tonight Show with Jimmy Fallon, wearing the same exact clothes, and making it the first time they two have ever appeared in the same room together.

To set the record straight about who is who, the two stars had a drum-off on the late-night show, and it was pretty clear who was the better drummer. There was also an appearance by the entire rock band, which made the drum-off even more spectacular.

2 Emily Kinney & Evanna Lynch

It's hard to believe that Emily Kinney and Evanna Lynch aren't related because these two blonde beauties look so much alike. With their soft-spoken voices and similar facial features, the two can easily be called sisters if they were even spotted together.

Kinney is most recognized for her role as Beth in The Walking Dead, while Lynch starred as Luna Lovegood in the Harry Potter film series.

1 Millie Bobby Brown & Natalie Portman

Many people have taken notice of The Stranger Things Millie Bobby Brown and how she has strikingly similar features to a young Natalie Portman. The 16-year-old's bright brown eyes, brown hair, and facial structure are comparable to Portman when she began acting at a young age.

Portman was even asked about the similarities and told MTV News, "I met Millie at the Golden Globes a few months ago. She came up to me and was like, 'People keep telling me I look like a kid version of you!'" Portman shared, adding, "I was so flattered because she's absolutely adorable and talented."

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