Because you like Ellis Boyd "Red" Redding in The Shawshank Redemption

Kevin Khatchadourian is a disturbed, affect-less teen on a dark path. See them in We Need to Talk About Kevin.

As the unit chief of the FBI's Behavioral Analysis Unit, Aaron Hotchner is dead serious about avenging dead people. See them in Criminal Minds.

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.

Cisco Ramon is a proud, enthusiastic member of a superhero support team. See them in DC Extended Universe.

While he might be too cool for school, Soul isn't too cool to do the right thing. See them in Soul Eater.

Reckless, vulgar, loud-mouthed: that's what makes Amethyst so awesome. See them in Steven Universe.

It turns out breaking open an ancient cursed statue will do funny things to a girl like Enchantress. See them in Suicide Squad.

Robin Scherbatsky is a former teen pop star who loves dogs and is scared of relationships. See them in How I Met Your Mother.

Tail's smarts and helpful nature come in handy in a pinch. See them in Sonic the Hedgehog.

Rose Tyler may have not done too well in school, but she's certainly holding her own in space. See them in Doctor Who.