Harry Potter and Game of Thrones are some of the most popular and critically acclaimed fantasy sagas of all time. Both Harry Potter and Game of Thrones are based on a book series and have prequels expanding on the fictional universe. They introduce several characters that make their fictional world rich and detailed. And with so many characters to give life to, Harry Potter and Game of Thrones have many actors in common.
Source：https://www.cbr.com/harry-potter-got-same-actors/
