Sorner, otherwise known as "Spotty" Sorner, was a student at Experiment House during the 1942-43 school year. He was also a member of The Gang, a group of bullies made up of ten or fifteen of the oldest students. He may have been given his nickname because of freckles or pimples (in England, known as spots). If the latter, his acne suggests that he was older than some of the other students such as Jill Pole, who was nine in the year 1942.