Because you like Ford Prefect in The Hitchhiker's Guide to the Galaxy

Clarice Starling is patiently working with one serial killer to stop another. See them in The Silence of the Lambs.

Rory Williams is a caring companion whose specialty is looking after others. See them in Doctor Who.

Donkey is proof that if you're annoying enough you can change the world; he's the reason that his friend Shrek does, well, anything. See them in Shrek.

Morticia Addams hates anything bright and cheery and loves all things ghoulish, ghastly, and violent. See them in The Addams Family.

Good-natured, sensitive, and introspective, Mason is on a lifelong path to finding himself. See them in Boyhood.

Velma Dinkley is all about getting results, not taking credit. She is the unsung hero of Mystery Inc. See them in Scooby-Doo.

A powerful priestess, Melisandre is shrouded in mystery and lots of red. See them in Game of Thrones.

Quirky teen Carly Shay is the director of her own life story. See them in iCarly.

A cocky surgeon, Stephen Strange is learning that magic is more real than he could ever imagine. See them in Marvel Cinematic Universe.

Brandon Teena is an adventurous young man with the courage to be himself. See them in Boys Don't Cry.

Ned is kind, warm, and gifted with an all-powerful touch. See them in Pushing Daisies.

A compassionate medical student, Martha Jones has found a Doctor she can really look up to. See them in Doctor Who.