Because you like Emmett Brown in Back to the Future

The bad boy medical intern might have a soft side‚ but you need to dig deep for it. See them in Grey's Anatomy.

M. Bison is a diabolical megalomaniac hell-bent on dominating the world. See them in Street Fighter.

Alex Danvers is a brilliant engineer tasked with alien threats, and one of those aliens is her adopted sister Supergirl. See them in Supergirl.

An ambitious man of science, Norman Osborn has become green with envy over Spider-Man's powers. See them in Marvel Cinematic Universe.

Derek Morgan is thoughtful and kind, but he won't say no to knocking the occasional door down when he gets the chance. See them in Criminal Minds.

Rick Dalton is an aging actor with insecurity issues. See them in Once Upon a Time in Hollywood.

A courageous boy robot, Mega Man is dedicated to achieving everlasting peace. See them in Mega Man.

Ahsoka Tano hopes to be a very powerful and knowledgeable Jedi one day. See them in The Clone Wars.

If Eleanor Shellstrop's true identity is revealed, she'll be sent to The Bad Place. See them in The Good Place.

Jasper Jordan is trying his best to make it through the night. See them in The 100.

Princess Bubblegum is brilliant and determined, but can display a nasty temper. See them in Adventure Time.

Ezra Fitz is a young English teacher hounded by his own relationship mistakes. See them in Pretty Little Liars.