Because you like Mark Watney in The Martian

Steven Universe is an excitable youth who likes junk food and trying to save the world. See them in Steven Universe.

A consummate schemer with a knack for solving mysteries, Shawn Spencer has trouble taking anything seriously. See them in Psych.

Fun and feisty on the outside, Meredith Grey is dark and twisty on the inside. See them in Grey's Anatomy.

One of Freddie Mercury's songs is "We Will Rock You." And does he ever! See them in Bohemian Rhapsody.

Stubborn, impulsive, and fun-loving, Hallie Parker is not afraid to devise some schemes to bring her family together. See them in The Parent Trap.

The Kid doesn't talk. He just acts with determination. See them in Bastion.

As a doctor-in-training, John Dorian should have his head in the game. But most of the time, it's in the clouds. See them in Scrubs.

Scar is sneaky, snarky, and always striving for more power. See them in The Lion King.

Smart, sarcastic, and loyal, Stiles Stilinski doesn't just want to be the sidekick in someone else's life. See them in Teen Wolf.

R2-D2 has been in the galaxy saving business for decades. Not bad for somebody whose vocabulary is limited to "beep-boop." See them in Star Wars Series.

Maurice Moss is a dedicated IT guy who even talks like a computer. See them in The IT Crowd.

Galina Reznikov is the head chef of prison, cooking up meals as well as storms on anyone who dares to cross her; even the guards are terrified of her. See them in Orange Is The New Black.