Because you like Eric Forman in That '70s Show

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

Jane Smith is a stone-cold killer, but you would never know it from looking at her. See them in Mr. & Mrs. Smith.

NiGHTS is a powerful but childlike spirit who hates being told what to do. See them in NiGHTS into Dreams.

Hannah Horvath is kind of a mess, but she owns her messiness in a way few people do. See them in Girls.

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

A conflicted small-town preacher, Jesse Custer leaves an unexpectedly bloody path in his wake. See them in Preacher.

Ultron is security software turned evil mastermind. See them in Marvel Cinematic Universe.

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

If this slick ad man doesn't like the conversation, he changes it—while drinking and smoking. See them in Mad Men.

Rachel Goldberg is a drama-causing reality TV producer with the power to ruin people's lives at the click of a button. See them in UnREAL.

Therese Belivet spent her life letting other people guide her along, and she wants to take control now. See them in Carol.