Downton Abbey’s Lady Mary, aka Michelle Dockery, has revealed she was like an excited child when the cast of the drama got the chance to film the Christmas scenes at Alnwick Castle, which previously acted as Hogwarts Castle of Witchcraft and Wizardry in some of the Harry Potter movies.

The massive Harry Potter fan was revealing some teasers for the festive special during a press day for the return of the fifth series, when she admitted her cool persona as Lady Mary well and truly went out the window when she entered the castle grounds, where ‘broomstick lessons’ are offered to visitors.

The castle acted as the spot where Harry and his friend Ron Weasley first learned to fly for Quidditch practice in the hit movies.

“I’ve seen and read them all,” Michelle added, talking about the Harry Potter books and films.

“As soon as I got there I ran onto the Quidditch pitch, and I was like, ‘Where are they?!’”