Angus, or famously known as Jack's giant, is a villain in the storybook "Jack and the Beanstalk". He was slain by Jack at the end of their storybook. In the third book, he was revived by the School Master with his fellow villains for him to rewrite his book's ending. He then perished after Sophie destroyed Rafal's ring.
Back when he was human, he was described to be a pointy-eared freckled hooligan.
After graduating in the The School for Evil, he gradually turned into a pointy-eared, freckled giant at the top of Jack's beanstalk.
Little is known about Angus, except for the fact that he previously resided in Gavaldon, as mentioned in the first book, and that he was kidnapped by the School Master a hundred years before alongside with Jack, as the individual who believes in Evil.