Natalie Portman and Gwen Jorgensen
Natalie Portman has proven herself to be a very versatile actress and her doppelgänger Gwen Jorgensen has shown that she's equally talented when it comes to sports.
The American triathlete is an admirable swimmer, runner and biker, which earned her a place at this year's Olympics. In addition to her enviable athleticism and Hollywood looks, Gwen has a master's degree in accounting. Talk about multitalented!
Neil Patrick Harris and Greg Rutherford
As one of Team GB's top track and field athletes, Greg Rutherford is normally seen in sporty gear, but when he dons a suit he’s likely to be mistaken for Barney Stinson – Neil Patrick Harris’s alter ego on How I Met Your Mother.
The pair could easily be twins with their similar face shape, hair colour, broad smile and a flair for unrivalled talent. Greg won a gold medal during the 2012 Olympics and is looking to win another in Rio.
Leonardo DiCaprio and Brady Ellison
Brady Ellison is a professional archer for Team USA, but the 27-year-old who's handy with an arrow caused a social media frenzy from Rio when fans noticed his uncanny resemblance to Oscar winner Leonardo DiCaprio.
Both the actor and the archer are rocking serious beards and the famous scowl.
The Duchess of Cambridge and Pauline Ferrand-Prevot
Fans were quick to notice the similarities in the Duchess and the 24-year-old's facial structure, right down to the duo's cute dimples.
Accomplished Pauline has already made a name for herself aside from her Olympian status as the first person ever in the history of cycling to hold the world road title, world cyclo-cross title and world mountain bike title at the same time.
Andrew Garfield and Andy Murray
"To lead out Team GB will be an incredible honour, the biggest in sport," said Andy Murray after being selected as Great Britain's flag bearer.
The tennis ace, who bears a striking resemblance to Spiderman actor Andrew Garfield, took home the gold for men's singles in the London 2012 games, so fans are eager to see him defend his title in Rio. We'll see if his spidey senses are tingling on the court!
Pink and Sophie Schmidt
Canadian football star Sophie Schmidt looks an awful lot like Pink, and not just because of the hair!
The expert midfielder is joining her Canadian teammates on Rio's football team to shoot and score as many goals as possible and go for the gold.
Sarah Silverman and Aly Raisman
The captain of America's female gymnastics team may look a little familiar, and it's not just because she held the same coveted role four years ago at the London Olympics.
Aly Raisman also looks a lot like the Wreck-It Ralph actress Sarah Silverman!
Stephen Colletti and Chris Mears If British diver Chris Mears ever decides to give up water sports, he might just be mistaken for Stephen Colletti, the former love interest of Sophia Bush on teen drama One Tree Hill.
But for now, he's sticking to the diving board at his first Olympic Games in Rio.
Jessica Biel and Roseline Filion
Canadian diver Roseline Filion could possibly trick Can't Stop The Feeling singer Justin Timberlake into a date thanks to her close resemblance to his wife Jessica Biel.
The Laval, Quebec resident competes in the 10-metre synchronized event with her diving partner Meaghan Benfeito. The duo showed off their enviable skill at the 2012 London Olympics, where they earned bronze, and the 2015 Pan Am Games, where they upped the ante and took home gold.
Gabrielle Union and Gabby Douglas
Gabrielle Union and Gabby Douglas share more than just a name! The American gymnast bears a serious resemblance to the Bring It On star.
Though Gabrielle showed off some impressive moves in the cheerleading flick, Gabby’s twists and turns are clearly on another level, earning the 20-year-old (and the rest of the United States’ female gymnast team) a gold medal.