A temporary school is being built on the studio lot where HBO's "Harry Potter" series will film for the next decade.

HBO has released the first look at the comedian and actor in costume as the half-giant and Hogwarts groundskeeper Rubeus Hagrid for its upcoming "Harry Potter" series. The photo was shared to the official "Harry Potter" and HBO Max social media accounts.

HBO has officially started production on the highly anticipated “Harry Potter” TV series adaption, the network announced Monday, also revealing a first look at the titular character.