Because you like Cookie Monster in Sesame Street

When their organization was infiltrated by evil HYDRA, who was the one guy Captain America trusted? A former soldier with kickass wings named Sam Wilson. See them in Marvel Cinematic Universe.

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

With an A.I. as loyal and witty as Cortana, who needs humans? See them in Halo.

Phil Coulson is a deadly field agent with the demeanor of a friendly dad. See them in Marvel Cinematic Universe.

Foul mouthed and disturbingly comfortable with violence, Hit-Girl is a precocious assassin who doesn't need anyone's protection. See them in Kick-Ass.

Lois Lane's journalistic success is the result of her tenacity. She will doggedly pursue her leads until discovering the information she needs. See them in DC Extended Universe.

There are a lot of rules in their society for women like Emily Dickinson. But Emily is a rule-breaker. See them in Dickinson.

A Haddock always has a trick up his sleeve! Tintin is lucky to have Captain Haddock as a companion to search for hidden treasure on an adventure around the world. See them in The Adventures of Tintin.

Tempestuous and talented, Claire Randall is a woman with a passionate heart and a quick mind. See them in Outlander.

Susie Salmon has a big heart, even though it's not beating anymore. See them in The Lovely Bones.

Annie Walker can bake a beautiful cupcake, but everything else in her life is a mess. See them in Bridesmaids.

Hannah Baker is a buoyant spirit broken by the cruelties of high school. See them in Thirteen Reasons Why .