Because you like Ethel Mertz in I Love Lucy

Faith has a chip on her shoulder and a stake in her hand to slay vampires in her town. See them in Buffy the Vampire Slayer.

Cyclops shoots lasers out of his eyes, destroying anything in his line of sight. See them in X-Men Series.

Bodhi Rook is a defected pilot for the Galactic Empire dead set on destroying the Death Star. See them in Rogue One.

Tina Cohen-Chang is a shy loner who becomes a fierce performer on stage. See them in Glee.

Relentlessly cheerful and optimistic, Erin Hannon is an office receptionist. See them in The Office.

A devoted butler, Alfred Pennyworth is both a fiercely protective guardian and a lethal gunman. See them in Gotham.

Spyro the Dragon loves getting into trouble around the Dragon Realms. See them in Spyro the Dragon.

April Kepner is an excellent surgeon, but outside of the operating room, she's more anxious than most. See them in Grey's Anatomy.

K-2SO is a blunt and sarcastic reprogrammed Imperial droid who is always up for an adventure. See them in Rogue One.

A determined and cold-hearted spy, Cassian Andor will do what it takes to stand up to the evil Galatic Empire. See them in Rogue One.

Winn Schott is just your friendly neighborhood superhero support system. See them in Supergirl.