At last a reason why Terriss haunts a station that was built after his death. He’s looking for baked goods and getting really disappointed. Maybe he’s given up and haunting a Greggs instead.
‘Covent Garden Tube Station
Covent Garden tube station was built as a part of the Piccadilly Line in 1907, as a part of the line opened by the Great Northern, Piccadilly and Brompton Railway. From the start there were rumours of something strange about the Piccadilly line ploughing through the sacred square: the local priest protested against the digging of the line because he believed that it would open up a gateway into hell.
Before the station was there, there were a run of shops that had been there since the early 19th Century. Longacre, the street on which the tube station stands, is a historical street stands: here the first bicycles were made in the workshops of Denis Johnson, the Oldhans Press printed the popular magazine John Bull and Sir Henry Irving met his wife, Lady Irving, while playing his first Shakespearean role. The shop blotted out by the tube station had once been a bakery, one of the finest in the area, which leads to the reason for its haunting…
William Terriss was an actor, a celebrity and a passionate proponent of charity. He was involved with the actor’s benevolent fund and met a terrible end elsewhere in Covent Garden. It is here, however, that he haunts: the site of the bakery that he visited almost every day during his life.
All the way through the 20th Century, since his death in 1897, the shade of a handsome man in a hat and cape has been seen walking through the walls of the Covent Garden tube station. Seen all the way through the 1960s and 70s the ghost was last seen in 1972.’
From here;
https://www.spookyisles.com/covent-garden-haunted-ghosts/