Sirius Black as a Dog

Sirius Black, nicknamed Padfoot, was a pure-blood wizard, the son of Orion and Walburga, and the brother of Regulus. During his studies at Hogwarts from 1971 to 1978, he became friends with James Potter, Remus Lupin, and Peter Pettigrew, and the four of them formed the group known as the Marauders. He was Harry Potter's godfather. Falsely accused of murder, he spent twelve years in Azkaban prison and was the first known wizard to escape from it.