The author Tom Ogden calls the Theatre Royal one of the world's most haunted theatres. The appearance of almost any one of the handful of ghosts that are said to frequent the theatre signals good luck for an actor or production. The most famous ghost is the "Man in Grey", who appears dressed as a nobleman of the late 18th century: powdered hair beneath a tricorne hat, a dress jacket and cloak or cape, riding boots and a sword. Legend says that the Man in Grey is the ghost of a knife-stabbed man whose skeletal remains were found within a walled-up side passage in 1848. Various people have reported seeing the ghost, including W. J. MacQueen-Pope, who described its usual path as starting at the end of the fourth row in the upper circle and then proceeding via the rear gangway to the wall near the royal box, where the remains were found.