Because you like Henry Mills in Once Upon a Time
Cisco Ramon is a proud, enthusiastic member of a superhero support team. See them in DC Extended Universe.
Victor Frankenstein can create life, so he's pretty awesome if he says so himself. See them in Frankenstein.
It's a mad, mad world, but Alice has a surprisingly level head as goes her own way down the rabbit hole. See them in Alice in Wonderland.
Milo Thatch is an enthusiastic researcher without cynicism. See them in Atlantis: The Lost Empire.
For Morgana, sometimes wanting to do the right thing can led you down the wrong path. See them in Merlin.
Chuck Bartowski is a sweet, laid-back electronics store/top secret government employee. See them in Chuck.
Felicity Smoak is a brilliant hacker who nonetheless becomes tongue-tied in front of attractive men. See them in DC Extended Universe.
Relentlessly cheery Ned Flanders enjoys a nice piece of bread with water on the side for dipping See them in The Simpsons.
Rory Williams is a caring companion whose specialty is looking after others. See them in Doctor Who.
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.
Fiery and adventurous, Amy Pond is the sort of woman you'd want by your side on a journey through time and space. See them in Doctor Who.