Because you like Bilbo Baggins in The Hobbit: An Unexpected Journey
Peter Venkman's "research" projects are designed to get undergraduate students to sleep with him. Though it turns out he can bust ghosts. See them in Ghostbusters.
A stylish agent, Agent J would rather improvise than play by the rules. See them in Men in Black.
A daughter of a pair of superheroes, Hope van Dyne is scientist is brilliant and fearsome. See them in Marvel Cinematic Universe.
A determined and cold-hearted spy, Cassian Andor will do what it takes to stand up to the evil Galatic Empire. See them in Rogue One.
Baloo is a fun-lovin' bear who just needs the bare necessities of life See them in The Jungle Book.
Haymitch Abernathy is a trainer for the tributes of District 12, although he's never sober enough to give much advice. See them in The Hunger Games .
A monstrous pirate captain, Davy Jones is quite literally heartless. See them in Pirates of the Caribbean: the Curse of the Black Pearl.
White Witch's heart is as frozen as the land she rules. See them in The Chronicles of Narnia.