Because you like Mabel Pines in Gravity Falls
Philip J. Fry accidentally cryogenically froze himself for a millennium. See them in Futurama.
The fearless bodyguard of Rick Flag, Katana will ruthlessly kill her enemies, trapping their souls in her sword. See them in DC Extended Universe.
How lucky are we that Arthur Curry, the King of Atlantis, hasn't taken over the surface world? Very! See them in DC Extended Universe.
Gomez Addams fills his days with ghoulish and ghastly forms of recreation, enjoying life and all its pleasures to the fullest. See them in The Addams Family.
N'Jadaka is a righteous man with a violent agenda. See them in Marvel Cinematic Universe.
Linda Belcher doesn't prescribe to what society deems as "normal." She narrates her life through song, much to the alarm of everyone nearby. See them in Bob's Burgers.
Experiment 626 was designed for one thing: to destroy everything he touches. See them in Lilo & Stich.
Bob Belcher runs a lonely burger joint, and even though his wit is lost on his eccentric family, he doesn't let that faze him. See them in Bob's Burgers.
A singing nanny, Mary Poppins is practically perfect in every way. See them in Mary Poppins.
A meek schoolteacher, Mary Margaret Blanchard can't remember her past as a spirited, swashbuckling Snow White. See them in Once Upon a Time.