While watching the Olympic action in Rio, you might have noticed a few familiar faces among the 11,000 athletes competing in Brazil. That's because several Rio Olympians have uncanny celebrity doppelgangers. Take a look at these athletes and their celebrity lookalikes.
American swimmer Michael Phelps (left) and New York Giants quarterback Eli Manning (right).
American soccer player Alex Morgan (left) and HBO series Girls actress Allison Williams (right).
French cyclist Pauline Ferrand-Prevot (left) and Catherine Duchess of Cambridge (right).
Jamaican sprinter Usain Bolt and The Wire actor Michael Kenneth Williams (right).
American American runner Abbey D’Agostino (left) and Game of Thrones actress Emilia Clarke (right).
American diver Kassidy Cook (left) and The Bachelorette Jojo Fletcher (right).
Australian hurdler Michelle Jenneke (left) and X-Men: Apocalypse actress Olivia Munn (right).
American swimmer Ryan Lochte (left) and Rutger Hauer from Blade Runner (right).
Argentine basketball player Luis Scola (left) and actor and comedian Russell Brand (right).
Serbian long jumper Ivana Spanovic (left) and X-Men actress Famke Janssen (right).
American sprinter Justin Gatlin (left) and former NBA player Joe Dumars (right).
Brazilian volleyball player Jaque Carvalho (left) and The League actress Janina Gavankar (right).
American golfer Lexi Thompson (left) and Orange is the New Black star Taylor Schilling (right).
American basketball player Klay Thompson (left) and the PBS logo (right).
American decathlete Ashton Eaton (left) and Silicon Valley actor Kumail Nanjiani (right).
American soccer player Hope Solo (left) and Dexter actress Jennifer Carpenter (right).
American beach volleyball player Phil Dalhausser (left) and Smashing Pumpkins singer Billy Corgan (right).
American swimmer Nathan Adrian (left) and member of the band 5 Seconds of Summer Calum Hood (right).
British tennis player Andy Murray (left) and The Social Network actor Andrew Garfield (right).
American diver Michael Hixon (left) and actor Zac Efron (right).
Russian swimmer Yulia Efimova (left) and It’s Always Sunny in Philadelphia actress Kaitlin Olson (right).
American swimmer Maya DiRado (left) and American soccer player Tobin Heath (right).
Tongan taekwando practitioner Pita Taufatofua (left) and John Tucker Must Die actor Jesse Metcalfe (right).
British long jumper Greg Rutherford (left) and actor Neil Patrick Harris (right).
American gymnast Aly Raisman (left) and comedian Sarah Silverman (right).
American fencer Lee Kiefer (left) and model and actress Cara Santana (right).
American beach volleyball player Kerri Walsh (left) and actress and three-time Academy Award nominee Laura Linney (right).
Australian assistant basketball coach Luc Longley (left) and Academy Award-winning actor Russell Crowe (right).
Brazilian swimmer Marcelo Chierighini (left) and actor Adam Brody (right).
Brazilian volleyball coach Bernardo Rezende (left) and sportscaster Dan Patrick (right).