Because you like Leroy Jethro Gibbs in NCIS

A grumpy tourist trap owner, Grunkle Stan has a few deep secrets. See them in Gravity Falls.

Ellie is more world-weary than most 14-year-olds. You would be too if your world was infested with zombies. See them in The Last of Us.

Stranded on Mars, Mark Watney is armed with quick wits, an electronic diary, disco music, and an undying resolve to make it back. See them in The Martian.

Tiffany Doggett is usually a nice, good Christian. Just don't get her riled up! See them in Orange Is The New Black.

Whether it's getting a deal or finishing a homework assignment, Jessica Huang demands nothing less than the best from those around her. See them in Fresh off the Boat.

Ofelia is face-to-face with the deadliest creatures of the underworld and completely unafraid. See them in Pan's Labryinth.

Gruff and efficient, Sam Fisher protects a nation that can never admit he exists. See them in Tom Clancy's Splinter Cell.

Rebecca Bunch struggles with decision making. So much so that she chases her high school boyfriend across the country to win him back. See them in Crazy Ex-Girlfriend.

Often on the verge of a nervous breakdown, Annie Edison nevertheless manages to be the brain of the Greendale study group. See them in Community.

Fiery, intelligent, and opinionated, Jo March rebels against the restrictions of her era. See them in Little Women.

Captain Spock is on a five-year mission exploring the final frontier and boldly going where no man has gone before. See them in Star Trek.

A kind and funny valedictorian, Gwen Stacy likes to make out with Spider-man when her homework's done. See them in Marvel Cinematic Universe.