Because you like Donna Noble in Doctor Who

Peter Venkman's "research" projects are designed to get undergraduate students to sleep with him. Though it turns out he can bust ghosts. See them in Ghostbusters.

Burton Guster is a level-headed investigator with a "Super Sniffer" nose. See them in Psych.

Though he may be blind, Chirrut Imwe sees the power of the force more than most. See them in Rogue One.

A self-proclaimed diva, Mercedes Jones is on the hunt for a stage worthy of her talents. See them in Glee.

Although life in a post-apocalyptic world is far from easy, Julie Grigio maintains her sense of humor. See them in Warm Bodies.

Cyclops shoots lasers out of his eyes, destroying anything in his line of sight. See them in X-Men Series.

Michael Kelso gets by on his good looks and his openhearted nature. See them in That '70s Show.

Selfishly taking her father’s place to fight in the Imperial Army, Hua Mulan risks treason if they find out she isn’t who she says she is. See them in Mulan.

Terry Jeffords (and his muscles) may look ferocious, but inside he's just a caring mama hen. See them in Brooklyn Nine-Nine.

Sansa Stark is a fan of all things pretty. Unfortunately, her life is about to get extremely ugly. See them in Game of Thrones.

Don't ask Rosa Diaz, a Brooklyn detective, to lighten up. Actually, to be safe, don't ask her to do anything! See them in Brooklyn Nine-Nine.

Introverted Kira Yukimura is sweet, bubbly, and eager to make friends. See them in Teen Wolf.