Because you like Robert Jebediah Freeman in The Boondocks

Carl Fredricksen is a crotchety old man who may just have it in him to take one last, great adventure. See them in Up.

She's mostly doom and gloom, but you'd get nowhere without Sadness. See them in Inside Out.

L is enigmatic, child-like, and one of the smartest people in the world. See them in Death Note.

With great power comes great responsibility, but Peter Parker always seems to get the short end of that bargain. See them in Marvel Cinematic Universe.