Because you like Robbie Turner in Atonement

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.

A born psychopath, don't expect Michael Myers to understand the difference between right and wrong. See them in Halloween.

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

Woody is a selfless leader of Andy's toys who likes change less than a snake in his boots. See them in Toy Story.

A house elf, Dobby is loyal, compassionate, and yearning for freedom. See them in Harry Potter Series.

A malevolent dark wizard, Voldemort is so fearsome that he's known primarily as "He Who Must Not Be Named." See them in Harry Potter Series.

When he's not working as a detective, Lucifer is driving around in a black convertible or having one-night stands. See them in Lucifer.

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

A few millennia in the mortal realm have caused DEATH to be quite enamored of life. See them in Discworld.

Anger-filled, merciless, and tortured, Kylo Ren is always at war—with the Rebel Alliance, and with himself. See them in Star Wars Series.

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

Tidus is upbeat, carefree, and desperate not to become his father. See them in Final Fantasy Series.