Answer:
Harry Potter would be an example of a round character.
Step-by-step explanation:
Round characters change throughout the story. The conflict of the story helps this character to change. Round characters are often the main characters. In other words, they are characters the reader is given lots of information about.
So in Harry Potter series, Harry Potter is the main character who has faced conflicts thrown at him and conquered it, but was ultimately changed in even the slightest way. In this case, it would be Voldemort evil and horrifying schemes and actions.