Because you like Alyx Vance in Half-Life 2

Sophie Sheridan is a proud and independent woman who hardly ever looks before she leaps. See them in Mamma Mia!.

This mathematical genius doesn't have time for small talk; Alan Turing needs to break Enigma, the Nazi's cipher machine. See them in The Imitation Game.

A powerful priestess, Melisandre is shrouded in mystery and lots of red. See them in Game of Thrones.

How is angel Aziraphale supposed to stop the apocalypse when Hell's forces misplaced the Antichrist somewhere? See them in Good Omens: The Nice and Accurate Prophecies of Agnes Nutter, Witch.

Introspective Theodore Twombly would rather observe life than participate in it. See them in Her.

Wanting more out of life, Pam Beesly has a job she isn't crazy about and is engaged to a guy she's not sure is "The One." See them in The Office.

If it means fulfilling her ambitions, Satsuki Kiryuin will show neither shame nor hesitation. See them in Kill la Kill.

Brandon Teena is an adventurous young man with the courage to be himself. See them in Boys Don't Cry.

A compassionate medical student, Martha Jones has found a Doctor she can really look up to. See them in Doctor Who.

The vampire that killed Zero Kiryu's family also infected him, and he starts to crave blood, much to his horror. See them in Vampire Knight.

There's nothing like discovering dear old dad is a serial killer to send you into an (understandable) funk. See them in Hannibal.