Because you like Addison Montgomery in Grey's Anatomy

Stefan Salvatore was the golden boy when he was alive. Can he keep it up as a vampire? See them in The Vampire Diaries.

It's impossible to say whether Winifred Burkle is cuter than she is smart, or vice versa. See them in Angel.

You wouldn't know it by looking at her, but beneath Sheila Jackson's sweet, motherly exterior lies a sex addict. See them in Shameless.

Ally Maine is a star who is about to be born. See them in A Star is Born.

Anya Jenkins has a real harsh bark to go with her demonic bite. See them in Buffy the Vampire Slayer.

Winn Schott is just your friendly neighborhood superhero support system. See them in Supergirl.

Bookish and socially anxious, Ruby Roundhouse is a teenager turned action heroine. See them in Jumanji.

Everything is fascinating to Octavia Blake who has been locked away for her entire life. See them in The 100.

Murph is inquisitive, compassionate, and stubborn, with a passion for science she shares with her dad. See them in Interstellar.

Kate Beckett is a no-nonsense policewoman with a nerdy side. See them in Castle.

Raven Reyes may be a deliquent, but she's also the youngest zero-gravity mechanic who fixed a 130-year old escape pod to make it through the descent to Earth. See them in The 100.

A suave manipulator, Sebastian Valmont is valiantly fighting off a developing conscience. See them in Cruel Intentions.