Because you like Ichigo Momomiya in Tokyo Mew Mew
A genetic experiment engineered to be the perfect assassin, Agent 47 is cold, professional, and lethal. See them in Hitman.
Although Penny's friends have genius-level IQs, they regularly come to her for advice and insight. See them in The Big Bang Theory.
Harry Osborn is the privileged son of Oscorp's founder with a goblin-sized chip on his shoulder. See them in Marvel Cinematic Universe.
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.
In charge of stocking the office's supply of cigarettes and liquor, Joan Holloway could run the whole company if they would let her. See them in Mad Men.
Stewie Griffin is just your average evil-genius, talking, sociopathic baby. See them in Family Guy.
He may forget his homework, lose his toad, and fall off brooms, but Neville Longbottom can also single-handedly destroy villains. See them in Harry Potter Series.
Carol Aird is driven to fight to make her life better, regardless the consequences. See them in Carol.