The Anger Ghosts are one of the three types of Ghosts that haunt the town of Newbury.
Anger Ghosts are one of the three known forms of Ghosts from the Hidden Side. They generally seem to be created from people or creatures who died in frustration or have been angry their whole life.
- They're currently the ghost kind which features the most Boss Ghosts, with a total of eight. These are Blaze M. Barr, Captain Archibald, Dr. Drewell, Lady Evelina, Maxine Turbo, Samuel Mason, Tragico, and Trucker Dale.
- Both Lady Evelina and Vaughn G. Jackson entered the Hidden Side and became Anger Ghosts, possibly meaning that the humans who enter the Hidden Side, if they stay for too long, become Anger Ghosts.