Because you like Bellatrix Lestrange in Harry Potter Series

Felicity Smoak is a brilliant hacker who nonetheless becomes tongue-tied in front of attractive men. See them in DC Extended Universe.

Klaus Baudelaire's photographic memory saves the lives of his siblings many times over. See them in Lemony Snicket's A Series of Unfortunate Events.

This power-hungry Time Lord calls himself the "master of all." Bonus: he has 13 lives. See them in Doctor Who.

Intelligent Adele is soft spoken yet brimming with emotion. See them in Blue is the Warmest Color.

A suave demon, Crowley grants humans their wishes in exchange for their soul, only to find loopholes that benefit him. See them in Supernatural.

Jane Smith is a stone-cold killer, but you would never know it from looking at her. See them in Mr. & Mrs. Smith.

Penelope Garcia is the smartest ex-con turned FBI tech, but her fashion never fails to raise eyebrows. See them in Criminal Minds.

Growing up is hard for Carl Grimes. Growing up in a zombie apocalypse is even harder. See them in The Walking Dead.

D.J. Tanner is a rebellious teen who wishes her lame dad would butt out of her personal life. See them in Full House.

If you cross him, Tommy Shelby is the last man you'll ever see. Not too hard on the eyes though. See them in Peaky Blinders.

Klaus Hargreeves is funny, flirty, and high at any given moment, but he's also the most emotionally literate of his super-powered siblings. See them in The Umbrella Academy.

Prim and proper Allie Hamilton was raised to follow the rules. But she's got a fiery rebellious side too. See them in The Notebook.