Captain Nemo is a dynamic character because he develops throughout the book. He begins as a sort of an enemy and during the voyage he becomes a better man and changes his ways.
A static character is a literary or dramatic character who undergoes little or no inner change; a character who does not grow or develop. Static character don't change through the story they keep the same personality and reaction from chapter 1 to the end, they don't present any kind of change of mind or revelation. They are predictable in some levels.
