Because you like Sam Witwicky in Transformers

Red doesn't like to explain herself. She wants her work to do the talking. See them in Transistor.

A grumpy tourist trap owner, Grunkle Stan has a few deep secrets. See them in Gravity Falls.

If it were up to her, Merida would spend her days practicing archery and swordfighting, riding her horse, and exploring the Highlands. See them in Brave.

After having his mind altered after a bad breakup, Joel Barish is not convinced that ignorance is bliss. See them in Eternal Sunshine of the Spotless Mind.

Basically a giant pillow come to life, Baymax is a medical robot created for the sole purpose of helping people. See them in Big Hero 6.

With his own ship, Peter Quill calls his own shots, and gets to fly from planet to planet blasting '70s pop hits and picking up alien chicks. See them in Marvel Cinematic Universe.

With an undeniable sense of adventure, Huck Finn is an expert at getting into and, more importantly, out of sticky situations. See them in The Adventures of Huckleberry Finn.

For Sly Cooper, stealing isn't just about the haul. It's also about the journey. See them in Sly Cooper.