Because you like James Halliday / Anorak in Ready Player One
Rayman is a fearless hero who flies into action with a propeller on his head and a smile on his face. See them in Rayman.
A few millennia in the mortal realm have caused DEATH to be quite enamored of life. See them in Discworld.
Charles Boyle is the human equivalent of a puppy, only slightly less adorable. See them in Brooklyn Nine-Nine.
Funny, bubbly, and relaxed, Emma has a magnetic personality that makes her the life of the party. See them in Blue is the Warmest Color.
Mr. Robot always seems to know what to do when others are lost. But can he be trusted? See them in Mr. Robot.
Rue is an icy prima ballerina whose obsession with perfection obscures a hidden desire to be loved. See them in Princess Tutu.
Though the weight of a secret robs her of her voice, Melinda is nevertheless artistic, intelligent, and empathetic. See them in Speak .
Liv Moore is a sarcastic high-achiever turned morally conflicted zombie. See them in iZombie.
A caring, curious, and considerate android, Vision could crush your skull if he had to. But he'd rather not. See them in Marvel Cinematic Universe.
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.
If you died and came back to life, and then died more times and came back, you might stop battling evil mutants. Not Jean Grey. See them in X-Men Series.
It's easy to see why Poe Dameron would side with the rebellion: he's bad at taking orders, likes to show off, and is committed to the cause. See them in Star Wars Series.