Natalie Portman - The Oscar-winning actress is not only a Harvard University graduate, she has also been published twice on scientific journals and has an Erdős–Bacon number of 7.
Justin Bieber - Biebs is not only a huge pop star, he's actually a bit of a nerd too.
Stephen Colbert - The talk show host is a huge sci-fi addict, and has closely followed J.R.R. Tolkien's work and the 'Star Wars' saga.
Mila Kunis - The actress is a well-known fan of the video game 'World of Warcraft,' and her character's name was "Captainpicard"—Patrick Stewart's character in 'Star Trek: The Next Generation.'
Nicolas Cage - The actor is legally a geek. He changed his surname from "Coppola" to "Cage," after superhero Luke Cage.
Colin Firth - The Oscar-winning actor is also a scientist! He has been credited as the co-author of an academic paper on human brains, as reported by the BBC.
Zachary Levi - Levi is also the creator of The Nerd Machine, a website dedicated entirely to the nerd community.
Rosario Dawson - As a major 'Star Trek' groupie, Dawson is a frequent presence at Comic-Con events. She even knows how to speak Klingon!
Vin Diesel - It might come as a bit of a surprise, but the actor is a huge fan of the board game Dungeons and Dragons, which he began playing as a teen.
Rashida Jones - Harvard graduate Rashida Jones is a straight-up geek. She even wrote her own comic book series, 'Frenemy of the State.'
Simon Pegg - As if being in 'Star Trek,' 'Star Wars,' and 'Doctor Who' wasn't enough to qualify as a total geek... Pegg also has a New York Times best-selling book, 'Nerd Do Well.'
Felicia Day - The actress is known as The Queen of Geek. She's a video game addict, and she turned her passion into her career with the successful online video series 'The Guild.'
Art Garfunkel - Just before Simon & Garfunkel rose to stardom, singer Art Garfunkel was working on his doctorate in mathematics education at Columbia University.
Dexter Holland -
The Offspring musician has a masters in molecular biology from the University of Southern California.