Because you like Harold Lee in Harold & Kumar Go To White Castle
This wizard is never late, nor is he early. Gandalf arrives precisely when he means to. See them in The Lord of the Rings.
Hawkeye is most comfortable perched above the action, keeping an eye on everything and using a well-timed arrow to save the day. See them in Marvel Cinematic Universe.
Orphan Bruce Wayne has a tortured soul, but he's trying his best to weed out corruption. See them in DC Extended Universe.
Make sure not to anger the Hulk or else he will transform into a giant green monstrosity and smash anything in his way. See them in Marvel Cinematic Universe.
SpongeBob SquarePants lives in a pineapple under the sea. Absorbent and yellow and porous is he. See them in SpongeBob SquarePants.
A benevolent madman with a blue box, The Doctor is traveling through time and space to heal the wounds of the universe. See them in Doctor Who.
Kat Stratford is part of the "out" crowd and proud of it. See them in 10 Things I Hate About You.
Dory is more than a little forgetful, but she'll always remember to have your back. See them in Finding Nemo.
Hiccup Haddock III may be the only Viking nerd in recorded history. See them in How to Train Your Dragon.
She's mostly doom and gloom, but you'd get nowhere without Sadness. See them in Inside Out.
As a scaring Assistant, Mike Wazowski frightens children to collect their screams to be used as a power supply for the city. See them in Monsters, Inc..