Because you like James T. Kirk in Star Trek
Don't let Princess Peach's sweet, gentle nature fool you. Princess Peach can put up a good fight. See them in Super Mario Bros..
Cutting ties with her con-artist friends, Sarah Manning is creating a better life for her daughter by taking on the identity of the deceased Beth. See them in Orphan Black.
Keren Walker is a socialite looking to avoid work, keep a constant buzz, and be as snarky as possible. See them in Will & Grace.
Wanderer is a Soul, a parasite sent into a host to take over their body, extracting information from them and colonizing their species. See them in The Host.
Frank N. Furter is just a sweet transvestite with some not-so-sweet plans. See them in The Rocky Horror Picture Show.
When push comes to shove, the usually overly cautious Luigi has the heart of a hero. See them in Super Mario Bros..
A speed-loving daredevil who lives on the edge, Sonic is as brave as he is cocky. See them in Sonic the Hedgehog.
Hoban Washburne shows you can be a hotshot space pilot *and* play with dinosaurs. See them in Firefly.
A literal fallen star, Yvaine is temperamental, sarcastic, and a bit on edge. See them in Stardust.