Everyone wants to know who their celebrity doppelgänger is. We all try to guess which famous person we look the most like. The thing is, that applies to celebrities, too: Sometimes it just so happens they have a lookalike who's another famous people running in the same circle as them.

Sarah Hyland & Mila Kunis

sarah hyland mila kunis
photo: Splash

These two actresses get mistaken for one another so often that sometimes they just wind up switching identities. "She said that sometimes she pretends she's me because it makes her feel young," Hyland said about Kunis.

Millie Bobby Brown & Natalie Portman

Millie Bobby Brown & Natalie Portman
photo: Splash

The "Stranger Things" star is basically a clone of a young Portman, which means she has a bright future ahead of her.

Isla Fisher & Amy Adams

isla fisher amy adams
photo: Splash

Maybe it's the red hair that makes people mix these two up.

Olivia Culpo & Eiza Gonzalez

olivia culpo eiza gonzalez
photo: Splash

I am SHOOKETH at the resemblance between the model and the Mexican actress.

Katy Perry & Taylor Schilling

katy perry taylor schilling
photo: Splash

Perhaps Perry could be a stand-in for Schilling on "Orange Is the New Black."

Katy Perry & Zooey Deschanel 

katy perry zooey deschanel
photo: Splash

OR she could have filled in for Deschanel on "New Girl" back when her hair was brown.

Kat Dennings & Marion Cotillard 

kat dennings marion cotillard
photo: Splash

People often assume these two are related, despite them having no connection at all.

Javier Bardem & Jeffrey Dean Morgan

javier bardem jeffrey dean morgan
photo: Splash

Honestly, one is just as good as the other.

Rachel Bilson & Kaia Gerber

rachel bilson kaia gerber
photo: Splash

Good luck trying to guess these two stars apart after a couple of drinks.

Margot Robbie & Jaime Pressly

margot robbie jaime pressly
photo: Splas

Truly SPEECHLESS.

Minka Kelly & Leighton Meester

minka kelly leighton meester
photo: Splash

Luckily there's no competition between these two lookalikes, who happen to be co-stars and friends.

Henry Cavill & Matt Bomer

henry cavill matt bomer
photo: Splash

They're basically identical, but both incomprehensibly handsome.

Nina Dobrev & Victoria Justice

The singer is pretty much a mini-me of the "Vampire Diaries" star.

Chace Crawford & Ian Somerhalder 

chace crawford ian somerhalder
photo: Splash

That little smirk is scarily similar.

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