Because you like Roz Doyle in Frasier

Jenna Rink is physically 30 but emotionally 13. She has a better excuse than most. See them in 13 Going on 30.

Alison DiLaurentis believes you're always better off with a really good lie. See them in Pretty Little Liars.

Nothing instills more fear in the Empire than the deep kshhh of Darth Vader breathing through his helmet. See them in Star Wars Series.

Usagi Tsukino may look like a lazy teen, but when Usagi conjures up her alter ego and calls her Sailor Scout team, no villain stands a chance. See them in Sailor Moon.

Aang is already a master airbender and once he learns to manipulate water, earth, and fire, he'll be truly unbeatable. See them in Avatar: The Last Airbender.

Willow Rosenberg may be a witch who can defeat the forces of evil, but she still gets emotional over kittens on the Internet. See them in Buffy the Vampire Slayer.

Whether he’s hacking or dodging a bullet, Neo has a poker face that never drops. And it doesn’t hurt that he’s prophesied to be "The One" to save humanity. See them in The Matrix.

Scott Pilgrim's superhero suit is just a video game t-shirt and sweatbands. But this slacker is brave enough to fight all his girlfriend's evil exes. See them in Scott Pilgrim vs. the World.

Gollum is slimy and seething with hatred, the last person you would want to meet in a dark cave. See them in The Lord of the Rings.

A gentle alchemist who is soul-bound to a giant suit of armor, Alphonse Elric is growing into the responsibility handed to him. See them in Fullmetal Alchemist.

A natural leader, Clarke Griffin dispenses both justice and mercy, and she does it all while being selflessly humble. See them in The 100.