||The owner of stables near Angel Alley in London. After bolting from Greyfriars, Percy Bolsover and his friend Tadger spent the night there.
|EAST, Professor J
||A passenger on the boat that ran aground near the Shoulder. He, and all the other passengers and crew disappeared (possibly victims of a snake) at sea.
||The mother of Algernon D'Arcy.
||The father of Algernon D'Arcy.
||A Greyfriars schoolboy in the Remove.
||He took money from the Famous Five during their trip along the Thames in return for letting them camp on his land. However, it was not his land, but land belonging to Major Loder, an uncle of Gerald Loder.
||A maid at Cliff House school.
||An aunt of Dick Penfold.
||A Greyfriars schoolboy in the Sixth Form.
||A Greyfriars schoolboy in the Remove. Shares study No. 8 with Smith Minor.
|ELLISTON, Mrs Margaret
||A film actress with Mr. Jamfrey’s film company.
||A maid of Dr. Locke.
|ENGENSEN, Professor Ethelbert
||A chemist who invented a cure for obesity and selected Bunter as a guinea pig for his cure.
||A schoolboy at Repley school in Yorkshire. He was about to be caught in a pub but Algernon Darrell was caught as he tried to warn him and was expelled.
||A Rookwood schoolboy in the Fourth Form on the Classical side. A good friend of Mornington, and a member of Rookwood's sporting teams.
||A member of the Rafia, a secret society.
||A Greyfriars schoolboy in the Remove. He was a self-confessed funk that the Remove turned in to a great “fighting man” who was able to thrash Bolsover.
||A member of Pete Corcoran's gang of cattle rustlers.
||A Uppingham schoolboy, and a friend of Coker. He tried to arrange a rugby match with Coker.