Because you like The Doctor in Star Trek Voyager

A crooked cop, Harvey Bullock is the product of a not-so-just criminal justice system. See them in Gotham.

A cursed pirate captain, Barbossa is greedy, vengeful, and surprisingly cheeky. See them in Pirates of the Caribbean: the Curse of the Black Pearl.

Firo Prochainezo is swept up in a world of mysterious women, alchemists, and rumors of a wine that makes it drinkers immortal. See them in Baccano!.

Emma Woodhouse knows what's best for everyone else. Just don't try to tell her what to do. See them in Emma.

Jack Bauer is a terrorist fighter who is scared of nothing and no one. The clock is ticking! See them in 24.

Marv is a brutish but principled thug who'd be right at home on an ancient battlefield. See them in Sin City.

In his transformation from hardened convict to moral paragon, Jean Valjean is the kind of man we should all aspire to be. See them in Les Miserables.

Barbara Kean is loving, selfless, and caring. But, she's less stable than she'd like to admit. See them in Gotham.

Cinderella will sacrifice herself to keep her family's memory alive. See them in Cinderella (Live Action).

If anyone can stay optimistic and friendly under harsh alien rule, it's Alyx Vance. See them in Half-Life 2.

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