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Alongside a photo of himself holding onto the outside of a train, Davis wrote on Instagram on Monday, "Hogwarts has always held a very special place in my heart. When I first stepped into Professor Flitwick's robes all those years ago, I could never have imagined the journey this character - and the wizarding world - would take me on.” "Thank you to all the fans who have kept the magic alive - I can't wait to see you back in the classroom. Here's to further adventures at Hogwarts." In a message written over the photo, Davis added that the role "feels like a real homecoming"