Because you like Slippy Toad in Star Fox
The son of Death has an obsession with perfection and symmetry. See them in Soul Eater.
When the going gets tough, Rick Grimes gets tougher. It's a very useful trait when the world goes to hell. See them in The Walking Dead.
Puss In Boots is a suave, honorable ladies man/cat who's not above playing cute to get you to let down your guard. See them in Shrek 2.
Deadpool thinks life is an endless series of train wrecks with only brief commercial-like breaks of happiness. See them in Deadpool.
With his own ship, Peter Quill calls his own shots, and gets to fly from planet to planet blasting '70s pop hits and picking up alien chicks. See them in Marvel Cinematic Universe.
With great power comes great responsibility, but Peter Parker always seems to get the short end of that bargain. See them in Marvel Cinematic Universe.
Spike Spiegel is a bounty-hunter with a laidback style and lightning-quick moves. See them in Cowboy Bebop.
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.
Morticia Addams hates anything bright and cheery and loves all things ghoulish, ghastly, and violent. See them in The Addams Family.
A daring hacker, Trinity is one of the few rebels who escaped the Matrix, a simulation in which most of humanity is enslaved. See them in The Matrix.
Optimus Prime is a shapeshifting sentient robot leading a team of robots to stop evil from taking over. See them in Transformers.
Rhodes has to trust his conscience to guide him through a political struggle that could change the very shape of modern warfare. See them in Marvel Cinematic Universe.