Because you like Gimli in The Lord of the Rings

Despite the dissolution of his state, Prussia hangs on – mooching off his younger brother Germany and reading comics. See them in Axis Powers Hetalia.

Donkey Kong is a strong, banana-loving, and caring uncle to Diddy Kong. See them in Donkey Kong.

A fun-loving jokester, Alistair isn't ready for the responsibilities he faces. See them in Dragon Age Series.

Max Fischer is the President of every club who's fighting to save Latin at his school and kiss his teacher. See them in Rushmore.

The party never really ends with Penny Lane, a rock-worshipping groupie who is refreshingly self-aware and free-spirited. See them in Almost Famous.

Pengiuns, turtles, and all things scientific is where Sam's expertise lies. Girls are uncharted territory, but Sam is trying to branch out. See them in Atypical.

Ted Logan wants to party on, but if doesn't get an A+ on his history presentation, he'll flunk out and be sent to a military school in Alaska. See them in Bill & Ted's Excellent Adventure.

For Dana Scully, sometimes looking for extreme possibilities makes you blind to the probable explanation right in front of you. See them in The X-Files.

The Terminator is an emotionless killing machine who won't stop until he's changed the future. See them in The Terminator.

Django was once a slave. Now that he has a taste of freedom, he understandably wants a full meal. See them in Django Unchained.

If Lisbeth Salander can hurt a bastard who deserves it by digging up stuff about him, she feels good. See them in The Girl with the Dragon Tattoo.