Because you like Master Chief (John-117) in Halo

Sid Jenkins is the ultimate underachiever, but he doesn't mind. Well, he pretends he doesn't. See them in Skins.

Timid and a bit insecure, Amy Antsler has big dreams of activism and meeting new people. She's learning it's easier said than done. See them in Booksmart.

After becoming accepted into the group of popular girls, Tracy Freeland has turned from a sweet and reserved teenager into a monster. See them in thirteen.

Celine's a spontaneous Parisian college student enjoying the night of her life. See them in Before Sunrise.

Villanelle is a hired assassin who loves committing murder as much as she loves dressing up in fancy pink ballgowns. See them in Killing Eve.

While Cassie Ainsworth's head is always in the clouds, her heart is always in the right place. See them in Skins.

A photographic memory is just one of many skills Lexie Grey brings to the table as a surgeon. See them in Grey's Anatomy.

Chris Miles has run out of cash, luck, and drugs. See them in Skins.

Maddy Perez seems like an angel until she opens her mouth. See them in Euphoria.

Casey Gardner is an angsty teenage girl with quite a bit of sass that keeps getting her in trouble. See them in Atypical.

Elio Perlman likes the piano, peaches, and his father's new research assistant a little too much. See them in Call Me by Your Name.

Lux Lisbon's flirtatious manner attracts a lot of male attention. She relishes the power that her sexuality grants her. See them in The Virgin Suicides.