Because you like Molly Weasley in Harry Potter Series
Christian Grey is just as controlling in the bedroom as the boardroom. See them in Fifty Shades of Grey.
Terence Fletcher is a brutal and unflinchingly strict music teacher hell-bent on whipping his students into shape. See them in Whiplash.
It's time somebody has to take over. It might as well be Fish Mooney. See them in Gotham.
The Terminator is an emotionless killing machine who won't stop until he's changed the future. See them in The Terminator.
A believer in the pursuit of justice, Garrus Vakarian hates it when bad guys slip through the cracks of the bureaucratic justice system. See them in Mass Effect.
Kyoya Ootori is possibly the only person who could reasonably go from VP of a school club to ruling the world. See them in Ouran High School Host Club.
An infamous vampire, Alucard is a one-man killing machine with a philosophical side. See them in Hellsing.
Given his ability to wrench street signs from the ground, Shizuo Heiwajima is a useful one to have in dangerous Ikekuburo. See them in Durarara!!.
They say money can't buy happiness, but this reckless, high-flying banker knows otherwise. See them in The Wolf of Wall Street.