If you've watched Thor, you would probably know of the character Loki, he's not really good, but not bad at the same time. He's known as the God of pranking or lies. He often tricks Thor by changing his appearance so Thor is always throwing things at him to make sure he's real or not.
Don't know if this is what your asking for, but good luck!
Answer:
The series is Lion, Witch, and the Wardrobe. The characters names are Lucy, Susan, Peter, Edmund. Hoped this helps :)
