Grawp

Grawp is a giant who, although standing 16 feet tall, is short by giant standards. He is Rubeus Hagrid's maternal half-brother. Hagrid brought Grawp back to Hogwarts with him after his visit to the giants in Harry Potter and the Order of the Phoenix, mainly because the other giants were picking on him because of his height. Hagrid kept Grawp in the Forbidden Forest for months, teaching him manners and bits of English. Grawp was rather violent over the course of Order of the Phoenix; however, in Half-Blood Prince, he became more docile.

Behind the scenes

 * His name may come from all the other giants telling him to get bigger. When asked his name, he just responded what most people told him: Grawp (Grow up)