Your dream cast if this ever gets remade

I know the subject of this movie getting remade has been talked about numerous times and it doesn't seem to be getting closer to becoming a reality, but for the sake of curiosity, if you could cast any actors/actresses in the remake of this film, who would you cast? (If they do remake this movie, I hope it stays closer to the source material than the movie)

Here is a list of the major characters and the actor/actress I would cast in the role:

Luke: unknown actor
Bruno: unknown actor
Luke's Grandmother: Judy Dench
Hotel manager: Rowan Atkinson (the only cast member from the original movie I would bring back)
Grand High Witch: Catherine Zeta-Jones

Every other character in the book is not a major contributor to the story, so I don't really care who gets cast in the roles. I am only concerned with the main characters. Also, keep in mind, in the book, the Grand High witch did not have an assistant, so the character played by Jane Horrocks in the 1990 movie would not be in the remake.