Because you like Rupert Giles 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.
A reclusive introvert, Liz Sherman has a temper that's literally lethal. See them in Hellboy.
There's more to this sweet, caring landlady than meets the eye. See them in Sherlock.
Iris West is a barista and blogger determined to expose a secret. See them in DC Extended Universe.
Both a noble district attorney and a psychopathic villain, Harvey Dent proves some men really can have it all. See them in DC Extended Universe.
Kilgrave is a domineering, abusive boyfriend. Then, add in the power of mind control. See them in Marvel Cinematic Universe.
Kesuke Miyagi is a karate expert who thinks the best way a scrawny high schooler can learn how to defend himself is by washing every surface in sight. See them in The Karate Kid.
Sideshow Bob is a bitter ex-performer who was forced to do inhumane stunts for slapstick comedy. Now he's exacting revenge on his former boss, a clown. See them in The Simpsons.
Michael Kelso gets by on his good looks and his openhearted nature. See them in That '70s Show.
Warm and caring, Kitty Forman acts like a mom towards all of her kids' friends. See them in That '70s Show.
Alex Danvers is a brilliant engineer tasked with alien threats, and one of those aliens is her adopted sister Supergirl. See them in Supergirl.