8 Stars You Didn't Know Were Geeks

Mila Kunis is a recovering World of Warcraft addict and lists Star Trek: The Next Generation as her favorite series (then Voygager, Deep Space Nine, and Enterprise) and even has a collection of Star Trek memorabilia.

Zoe cemented her A-list sci-fi status with her lead role in Avatar and is a proud geek. She told People in 2003: "I was considered what you would think of as a geek . . . I loved stories that helped me escape, and those happened to be the stories that fall into the category of geekiness. So, therefore, I am a proud geek!"

She's also a web entrepreneur, having cofounded My FDB, an IMDB of the fashion industry.

Danica McKellar, who played Winnie Cooper on The Wonder Years, is something of a math wunderkind. As an undergrad at UCLA, Danica coauthored a physics-based hybrid theorem, which was honored in the British Journal of Physics.

After graduating with summa cum laude honors in mathematics, she went on to star in a variety of TV shows, including The West Wing and How I Met Your Mother, and became a bestselling author of books that encourage young girls to have confidence and enjoy math. Her nonfiction titles include Math Doesn't Suck, Kiss My Math, Hot X: Algebra Exposed, and Girls Get Curves: Geometry Takes Shape.

You probably know Mayim as Blossom or as Amy on The Big Bang Theory — but did you know that this former child star has a doctorate in neuroscience?

As a PhD student at UCLA, Mayim researched obsessive-compulsive disorder in adolescents with Prader-Willi syndrome, a rare genetic deficiency. During her studies, the actress gave birth to a son, inspiring her to become a certified lactation specialist and author a book on parenting titled Beyond the Sling: A Real-Life Guide to Raising Confident, Loving Children the Attachment Parenting Way.

"I'm not ashamed to say I'm a geek at heart." No, that wasn't Jared Leto talking, but Shaquille O'Neal. The retired NBA champion said it earlier this year when he was on a SXSW panel talking about his love of wearable tech.

He spends $1,000 a week on apps, buys 50 iPhones at a time, invests in little tech companies like Google (pre-IPO!), and developed his own video game, Shaq-Fu: A Legend Reborn.

He's also managed to receive a doctoral degree from Barry University in Human Resource Development and an MBA through University of Phoenix.