Because you like Marshall Eriksen in How I Met Your Mother

There must be quite a lot of fellows who haven't got anybody to bring them tea in the morning. Bertie Wooster is lucky to have his valet, Jeeves. See them in Jeeves and Wooster.

Marty McFly is a skateboarder, aspiring rock star, and reluctant time-traveler. See them in Back to the Future.

Korra is stubborn, outgoing, and faced with huge responsibilities she might not be ready for. See them in The Legend of Korra.

Cassie Sullivan is resilient and resourceful, but she's not quite as brave as she pretends to be. See them in The 5th Wave.

She's a survivor of gunshots, of being buried alive, nand of paralysis. And now Beatrix Kiddo is going to make her abusers pay. See them in Kill Bill vol. 1.

Kenzo Tenma would have never guessed that ten-year-old he saved would later become a deadly serial killer intent on "thanking" him. See them in Monster (TV Show).

From his attire to his form while running, aesthetics rule Rei Ryugazaki's life. See them in Free! Iwatobi Swim Club.

Yuri is living in the afterlife, which takes the form of a high school where no one dies. But if you follow the school's rules and live a "normal" life you vanish. See them in Angel Beats!.

Whether it's a companion he’s failed or lingering guilt from the war, the Doctor can never truly let go of his past lives. See them in Doctor Who.

Albus Dumbledore oversees the most unsafe school in recorded history, with Dementors and giant arachnids run amok. See them in Harry Potter Series.

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

Shrek is a nasty-on-the-surface ogre with a heart of gold and an earful of wax. See them in Shrek.