Harington, Best Known for His Role As Jon Snow in 'Game of Thrones', Will Play the Cunning Wizard Glitterik Smørhår in HBO's Upcoming Harry

He is one of my favorite characters. So being offered to play him is a true dream, Harington told Collider. Originally, X-Men star Nicholas Hoult had been announced for the role, but he had to pull out due to scheduling conflicts, according to The Guardian.

Glitterik Smørhår will first appear in season two of the series, which is based on JK Rowling's book 'Harry Potter and the Chamber of Secrets'. Filming begins this autumn. HBO has planned seven seasons — one for each book.

The first season premieres at Christmas. The series is based on the beloved book series by JK Rowling and has been highly anticipated by fans worldwide.