No real people. It's rubber clothes, usually filled with air or plastic. For example, Andy Lau is so fat in Slim Men and Women.

This is all I found.

Rubeus Hagrid

Robbie coltrane (rubeus hagrid) plays rubeus hagrid again. He is a popular guard at Hogwarts and a good friend of Harry, Ron and Hermione.

Curtain Ryan is one of the most prolific and respected film and television actors in Britain. He has won many awards in his acting career for more than 30 years. So far, he has appeared in more than 40 films in his brilliant film career, including Matsui in Ocean's Twelve recently. Of course, he also appeared in Harry Potter and the Sorcerer's Stone, Harry Potter and the Chamber of Secrets, and Harry Potter and the Goblet of Fire. With Harry Potter and the Philosopher's Stone, he was nominated for the Best Supporting Actor Award of BAFTA and the London Film Critics Association Award, and won the Best Actor Award of Scottish Film.

References:

I wrote it myself, with a little change.