What is the name of the actor who played the role of the person who is Keeper of Keys and Grounds of Hogwarts in "Harry Potter" films? 
Rubeus Hagrid:  He is introduced in "Harry Potter and the Philosophers Stone" as a half-giant and half-human who is the gamekeeper and Keeper of Keys and Grounds of Hogwarts, the primary setting for the first six novels.
i don't know