Because you like Artie Nielsen in Warehouse 13
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..
Shrek is a nasty-on-the-surface ogre with a heart of gold and an earful of wax. See them in Shrek.
WALL-E is a quirky little romantic robot cleaning the wasteland known as Earth. See them in WALL-E.
Steve Rogers is a good soldier. But above all, he's a good man. See them in Marvel Cinematic Universe.
A wildly brilliant detective, Sherlock Holmes can figure out everything except how to interact with other human beings. See them in Sherlock.
A dreamy space cadet, Luna Lovegood has never met a conspiracy theory she didn't believe in. See them in Harry Potter Series.
His murderous megalomania aside, Loki is quite charming. Just don't mention his strapping older brother; he's a tad jealous. See them in Marvel Cinematic Universe.