Because you like Maurice Moss in The IT Crowd

Ultron is security software turned evil mastermind. See them in Marvel Cinematic Universe.

The seasoned detectives in River Heights have got nothing on amateur sleuth Nancy Drew. See them in Nancy Drew.

Nothing inspires dread like the mysterious, masked Man in Black. But what's he hiding? See them in The Princess Bride.

N'Jadaka is a righteous man with a violent agenda. See them in Marvel Cinematic Universe.

Count Olaf is a traveling actor, except he can't act and his homicidal tendencies make finding work pretty difficult. See them in Lemony Snicket's A Series of Unfortunate Events.

Javert is an inspector with a single-minded focus: to bring criminals to justice. See them in Les Miserables.

Jillian Holtzmann's madcap mind is always whirring and she will transform anything into one of her machines. See them in Ghostbusters (2016).

Macbeth was probably named "Most Likely to Kill His Rivals" in his senior yearbook. See them in Macbeth.