Because you like Brain in Pinky and the Brain

Princess Bubblegum is brilliant and determined, but can display a nasty temper. See them in Adventure Time.

An adventurous dreamer, George Bailey always winds up putting other people's dreams first. See them in It's A Wonderful Life.

Jack Twist is a playful free-spirit, but he isn't afraid to fight for what he wants. See them in Brokeback Mountain.

Terry Jeffords (and his muscles) may look ferocious, but inside he's just a caring mama hen. See them in Brooklyn Nine-Nine.

As the hero of time, Link is reborn throughout history, always with the purpose of fighting and defeating the evil Ganon. See them in The Legend of Zelda.

Kristoff may seem standoffish, but this ice harvester has a warm heart. See them in Frozen.

After finding a mysterious object in one of the many rooms in her father's mansion, Bulma is inspired to discover its secrets. See them in Dragon Ball.

Don't ask the ruthless queen of the Tokyo underworld any questions unless you're fine with losing a limb. See them in Kill Bill vol. 1.

Although she is underestimated, Lagertha never fails to prove her worth as both a warrior and a mother. See them in Vikings.

Driven yet empathetic, Emily Prentiss brings humanity to the pursuit of inhuman killers. See them in Criminal Minds.

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

Jackie Burkhart is a privileged princess with a healthy dose of self-confidence. See them in That '70s Show.