Because you like Leonard Hofstadter in The Big Bang Theory

As a monster-hunter cursed with supernatural abilities, Geralt of Rivia is a cynic burdened by scruples in an unscrupulous world. See them in The Witcher.

Nicky Nichols just wants to settle down with a nice girl, but being in prison is making that a little difficult. See them in Orange Is The New Black.

Neurotic, motherly, and oh-so organized, Monica Geller is everyone’s favorite hostess, keen on settling down and starting a family - perhaps too much so. See them in Friends.

Oscar Jarjayes is a sword-swinging, fearless Commander of the Royal Guard who cross-dresses as a man. See them in Rose of Versailles.

A good-natured and academically minded superhero, Dan Dreiberg can still get his hands dirty in a fight. See them in Watchmen.

Michelle Richardson's world revolves around her boyfriend. Alas, his world doesn't revolve around her. See them in Skins.

Ahsoka Tano hopes to be a very powerful and knowledgeable Jedi one day. See them in The Clone Wars.

Donna is boisterous and spunky traveller of the TARDIS, exploring worlds beyond the simple mundane enterprises of Earth. See them in Doctor Who.

Rose Tyler may have not done too well in school, but she's certainly holding her own in space. See them in Doctor Who.

Years of being the less desirable Vargas sibling have given Romano quite an inferiority complex, as well as the temper to match. See them in Axis Powers Hetalia.

Mark Zuckerberg has achieved everything he's ever wanted, and he's proving to the world how brilliant he is. But happiness eludes him. See them in The Social Network.