Celebrity Doppelgangers

In a recurring gag, Cobie Smulders' character Robin found her doppelganger on the hit sitcom 'How I Met Your Mother' -- but if she were to have a real-life doppelganger, it would have to be Jessica Stroup.

With their matching jaws and pouts, actress Jessica Biel and model Christy Turlington could be long lost sisters. Assuming Jessica was an accident born 13 years later or in the midst of a mid-life crisis, of course.

Blonde afros are not becoming on anyone -- even Justin Timberlake and Matthew Morrison. Good thing these guys were attractive and talented back when they rocked them, or no one would have taken them seriously.

Young Billy Idol's signature look was spiky blonde hair, a whole lot of leather and a perma-snarl on his British face (which isn't a whole lot different from now). Inspired by his look was a certain vampire on 'Buffy the Vampire Slayer,' who spent the '70s looking like his, well, idol.

What do actor Orlando Bloom and a lemur share? If you guessed that they both have only one facial expression, you're right. At least the lemur has an excuse.

Both these ladies have one thing in common: As they look at you with that "come hither" stare, they seem to be saying, "Hey big boy, why don't you come up and see me sometime?" The good news? At least Emma Stone isn't a cartoon.

Here's some late '90s, early millenium celebrity doppelganger eye-candy for you -- because chiseled jaws, crossed arms and gun-holsters worn for fun and function are what it's all about for Mal (Nathan Fillion) on the short-lived 'Firefly' and 'The Mummy' hero Rick O'Connell (Brendan Fraser).

Rihanna is a hair chameleon, but it doesn't always work out for the better. Take for instance the curly red afro she rocked in 2011, which only made her look like 'The Simpsons' villain Sideshow Bob.

Reese Witherspoon and Brittany Snow are two bright-eyed blonde cuties -- just don't make the mistake of getting them mixed up, or Witherspoon might yell at you for not knowing her name.

They're creepy and they're kooky, mysterious and spooky, they're all together ooky, the Olsen family ... and apparently their long-lost sister Fiona Apple. (Songwriters we are not.)

Both Mila Kunis and Vanessa Hudgens have a lot in common. Not only did they grow up in the public eye, they have similar faces and have been known to appear in works that involve spontaneously breaking into song.

Sometimes life imitates art. And as it turns out, Jack Gleeson, who plays Joffrey Baratheon -- the jerkiest king of the seven kingdoms on 'Game of Thrones' -- bears an uncanny resemblance to this bust of the crazed Roman Emperor Caligula.

Much like Nic Cage and his 1800s counterpart, Jay-Z also has a historical look-alike, although his is from 1930s Harlem.

'Arrested Development' season four is less than three weeks away! In celebration of the season that we've been waiting for since the brilliant series was cancelled in 2006, here's actor Jeffrey Tambor (who plays George Bluth Sr.) looking an awful lot like the newly-installed Pope Francis. It's those damn beanies.

Kristen Stewart and Alicia Silverstone were the teen queens of their respective generations -- Stewart for playing the ingenue in the sparkly vampire series 'Twilight,' and Silverstone for her role as the, like, totally super cool Cher in 1995's 'Clueless.'

Ellen Page and Linda Cardellini shared more than the screen in the 2010 superhero-wannabe indie film 'Super.' Look at those faces!

Not all hairless men look alike, especially when one is a flesh and blood human and the other is a CGI fictional character. But there's something about Bruce Willis and Lex Luthor in the video game 'Injustice: Gods Among Us' that set off our look-alike ray. Yes, we totally have one of those in our storage unit.

There are plenty of unflattering things in this world to be compared to, but probably the most horrifying of those is having someone say you look like Donald Trump. Unfortunately, that's the lot in life of London's Mayor Boris Johnson (and his hair).

If you were under the assumption that Dave Coulier, aka Uncle Joey from 'Full House,' was also in 'Dumb and Dumber' alongside Jim Carrey ... you assumed wrong. It's understandable, though.

Britney Spears' royal look-alike, Princess Maxima of the Netherlands, is now Queen Maxima, which means that Britney's succession to the Pop Throne isn't far behind. (Move aside, Queen Bey -- we need these ladies on the throne simultaneously.)