Because you like Leonard "Bones" McCoy in Star Trek

Olive Hoover is an irrepressible child beauty queen (or would-be queen) who doesn't play by your rules. See them in Little Miss Sunshine.

A bureaucrat in the Land of the Dead, Manuel Calavera is a jaded, sarcastic loner who just might have a hidden heroic side. See them in Grim Fandango.

Whether it's punching a meteor or saving a teen from jumping, Superman tries to be in as many places as Kryptonianly possible. See them in DC Extended Universe.

Robin Scherbatsky is a former teen pop star who loves dogs and is scared of relationships. See them in How I Met Your Mother.

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

Told her son will one day save the world, Sarah Connor dedicates her life to training him to do just that. See them in The Terminator.

This suave con-man doesn't just want to become rich. Danny Ocean wants to rip off the guy who stole his wife in the biggest Vegas con. See them in Ocean's Eleven.

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

For Lee Everett, every day is now just another struggle to collect supplies, find other survivors, and stay alive. See them in The Walking Dead (Video Game).

Buttercup is a farm girl turned princess who'd do anything to have her old life back. See them in The Princess Bride.

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

Ellen Ripley defines the word "badass." When she's not leading her crew on an interstellar voyage, she's slaying terrifying creatures. See them in Alien.