Because you like Casey McCall in Sports Night

Rupert Giles is a librarian on the outside, fearless evil-fighter on the inside. See them in Buffy the Vampire Slayer.

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

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

Everything is fascinating to Octavia Blake who has been locked away for her entire life. See them in The 100.

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

Although Mako Mori may be small and quiet, she is a core of battle-hardened steel. See them in Pacific Rim.

People make more sense to the hyper-logical Temperance Brennan after they're dead. See them in Bones.

Fiery and adventurous, Amy Pond is the sort of woman you'd want by your side on a journey through time and space. See them in Doctor Who.

Donna is boisterous and spunky traveller of the TARDIS, exploring worlds beyond the simple mundane enterprises of Earth. See them in Doctor Who.

For Morgana, sometimes wanting to do the right thing can led you down the wrong path. See them in Merlin.

Susan Pevensie is sensible, practical, and fiercely protective of those she loves. See them in The Chronicles of Narnia.

Felicity Smoak is a brilliant hacker who nonetheless becomes tongue-tied in front of attractive men. See them in DC Extended Universe.