Because you like Jack Harkness in Doctor Who

Andy Dwyer might not be completely literate, but he makes up for it in spirit. See them in Parks and Recreation.

Kate Beckett is a no-nonsense policewoman with a nerdy side. See them in Castle.

Kesuke Miyagi is a karate expert who thinks the best way a scrawny high schooler can learn how to defend himself is by washing every surface in sight. See them in The Karate Kid.

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.

In Ziva David's world, you grow up fast; you don't have a choice. See them in NCIS.

A blood-thirsty warrior on the battlefield, Ragnar Lothbrok is a dedicated family-man at home. See them in Vikings.

Leonard "Bones" McCoy is passionate, moral, and ready to stitch you back together. See them in Star Trek.

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.

With a song always on her lips and her heart on her sleeve, Maria von Trapp is the governess every kid dreams of. See them in The Sound of Music.

Megara is a tough-as-nails survivor hidden behind a pretty face. See them in Hercules.

Scar is sneaky, snarky, and always striving for more power. See them in The Lion King.

A brave but pessimistic nobleman, Boromir knows one does not simply walk into Mordor. See them in The Lord of the Rings.