I'm a master of disguise. I just need to take off my clothes first.
”
— Dr. Griffin (Invisible Man)'s unlock message.
Dr. Griffin (Invisible Man) is a limited-time premium character that was released on October 30, 2019, as part of Act 2 of the Treehouse of Horror XXX Event. He is unlocked upon the completion of the Invisible House.
Dr. Griffin, otherwise known as the Invisible Man is the titular character from the 1897 novella The Invisible Man written by H. G. Wells, and the 1933 movie of the same name and its sequels.