Natalie Dormer attends the mtvU Fandom Awards at MTV Fan Fest at Comic-Con, July 24, 2014, in San Diego. (Photo by Jordan Strauss/Invision for MTV/AP Images)

Zachary Levi is also Comic-Con royalty, and not just because he played the lead on NBC's cult series Chuck. He hosts the Nerd HQ pop up at Comic-Con every year, which describes itself as “a free nerdy hangout”. Photo: Actor Zachary Levi arrives at SyFy/E! Comic-Con Party at Hotel Solamar on July 23, 2011 in San Diego, California. (Photo by Frazer Harrison/Getty Images)

Nathan Fillion is a huge fellow nerd not so much for his role on Castle, but thanks to his work in the universe of Joss Whedon, on projects such as Firefly, Serenity, and Dr. Horrible's Sing-Along Blog. Fillon explained that he and the Avengers director are friends in real life, too. Photo: Actor Nathan Fillion poses at the WireImage Portrait Gallery At Comic-Con Hosted By Connected Kenneth Cole Reaction And Presented By Nintendo on July 23, 2011 in San Diego, California. (Photo by Michael Bezjian/WireImage)

Robert Downey Jr. doesn't just walk in Iron Man's suit – he's a fan in real life. He attended Marvel Studios's Iron Man 3 panel during San Diego Comic-Con in 2012 partially as the superhero, partially as Tony Star, and completely as his charming self. Photo: Actor Robert Downey Jr. attends Marvel Studios “Iron Man 3” panel during Comic-Con International 2012 at San Diego Convention Center on July 14, 2012 in San Diego, California. (Photo by Albert L. Ortega/Getty Images)

Olivia Munn once explained exactly why she considered herself a geek: “I can actually tear apart a PC and put in more memory and the fan – and I can basically turn any PC into a gaming rig. That's one”, she told. Photo: Actors Doug Benson and Olivia Munn speak during a panel discussion for Lucasfilm: Star Wars Spectacular at Comic-Con 2009 held at San Diego Convention Center on July 24, 2009 in San Diego, California. (Photo by Michael Buckner/Getty Images)

Peter Dinklage is a giant nerd, mostly because of his role as Tyrion Lannister in HBO's Game of Thrones. However, he also played Bolivar Trask in 2014's X-Men: Days of Future Past. Photo: Actor Peter Dinklage speaks onstage during the “Game Of Thrones” panel during Comic-Con International 2013 at San Diego Convention Center on July 19, 2013 in San Diego, California. (Photo by Kevin Winter/Getty Images)

Olivia Munn arrives at the Comic-Con International: San Diego 2009 at the San Diego Convention Center in San Diego, California on July 25, 2009. (Photo by Gregg DeGuire/PictureGroup)

Actor Dominic Monaghan attends the Access Hollywood “Stuff You Must...” Lounge produced by On 3 Productions at the Sofitel Hotel on January 14, 2011 in Los Angeles, California. (Photo by Maury Phillips/WireImage)

Actor Jack Black walks down the street during Comic-Con International at San Diego Convention Center on July 18, 2013 in San Diego, California. (Photo by Mark Davis/Getty Images)

If you star on The Big Bang Theory, you're going to have at least a little bit of a nerd glow around you. Mayim Bialik also has a Ph.D. in neuroscience, which adds to her nerd factor. Photo: Actress Mayim Bialik attends “The Big Bang Theory” Press Room during Comic-Con International 2012 held at the Hilton San Diego Bayfront Hotel on July 13, 2012 in San Diego, California. (Photo by Frazer Harrison/Getty Images)

Most people would never know that Adrianne Curry – winner of the first season of America's Next Top Model and a subsequent reality star – is actually a ginormous nerd. She loves Star Wars and World of Warcraft, and she regularly partakes in cosplay, or the act of dressing up and pretending to be a fictional character. Photo: Adrianne Curry poses inside the IGN and Expendables 2 party at Float at Hard Rock Hotel San Diego on July 12, 2012 in San Diego, California. (Photo by Jerod Harris/Getty Images for IGN)

Megan Fox isn't just a fanboy's ultimate fantasy – she's also a fangirl herself, particularly when it comes to Lord of the Rings. She once told Xfinity, “I'll go on the forums and they'll complain that Frodo is eating the Lembas bread outside of Mordor instead of in the Mines of Moria. And they get really mad... You cannot focus completely on pleasing them because you'll never win”. (Photo by Michael Bezjian/WireImage for Sonya Dakar – Mindys Cosmetics)

Writer and director Kevin Smith was the ultimate fanboy before fanboys were a thing. The AMC reality show Comic Book Men follows the goings on at his comic book shop, appropriately named Jay and Silent Bob's Secret Stash in honor of Smith's best-known characters, located in Red Bank, New Jersey. Photo: Writer/director Kevin Smith visits Midtown Comics on March 4, 2011 in New York City. (Photo by Stephen Lovekin/Getty Images)

Felicia Day is technically not a nerd but a “new media geek”, according to her Twitter profile. But however the former Buffy the Vampire Slayer actress describes herself, she's revered by fans when she appears at Comic-Cons around the country. Photo: TV personality Shira Lazar, actress Felicia Day and TV personality Shay Carl attend “What's Trending” on October 9, 2012 in Hollywood, California. (Photo by Michael Bezjian/WireImage)