Because you like Howard Wolowitz in The Big Bang Theory

A Vietnam vet, Travis Bickle spends his days driving his taxi and watching porn flicks. See them in Taxi Driver.

A doting grandfather, Edwin Hoover also has a heroin addiction and a penchant for swearing. See them in Little Miss Sunshine.

A star student destined for Princeton, nerdy Devi Vishwakumar dreams of losing her virginity to a stone-cold hottie who can "rock her all night long." See them in Never Have I Ever.

Hiccup Haddock III may be the only Viking nerd in recorded history. See them in How to Train Your Dragon.

Few high school students could be less concerned with labels. See them in Ouran High School Host Club.

Smart and sensitive Sam Winchester tried to escape the family business, but ghosts have a way of haunting you. See them in Supernatural.

Sylar's victims are found all over the country, many with their brains removed. See them in Heroes.

Although Mako Mori may be small and quiet, she is a core of battle-hardened steel. See them in Pacific Rim.

Stoic, cynical, and independent, Homura Akemi is an alluring enigma. See them in Puella Magi Madoka Magica.

L is enigmatic, child-like, and one of the smartest people in the world. See them in Death Note.

A formerly timid caterpillar, Kurt Hummel is transforming into a glamorous, confident butterfly. See them in Glee.

John Watson is haunted by his past (who isn't) but he's starting to branch out with some help from a world class detective. See them in Sherlock.