Singing man (Now or Thereabouts)

A singing man was in a bathtub of the Camden flat of a war veteran in the Eleven-Day Empire when Little Sister Ceol visited to issue an eviction notice. He was singing a song from "Guy and Dolls". In contrast with the less corporeal war veteran and drunk man downstairs, the singing man was "very real", and when Ceol explained the situation to him, he agreed to leave in exchange for a lift to Earl's Court. Ceol and Little Brother Dominic took him there in their limousine. (PROSE: Now or Thereabouts)

Behind the scenes
The characters in the flat first appeared in author Blair Bidmead's short story With All Awry.
 * In that story, the war veteran was the amnesiac Eighth Doctor and the drunk man was "Reg". Fitz Kreiner left his leather jacket and his a TARDIS key in the Camden flat, telling the Doctor that the TARDIS was in Earl's Court; shortly afterwards, the Doctor and Reg found the singing man in their bathtub.
 * The Doctor described the stranger as an "enormous Northerner" with a crew-cut and a cheery smile. After Faction Paradox agents evicted the Doctor and Reg, they found the stranger had disappeared and taken Fitz's jacket with the TARDIS key in its pocket. When the Doctor arrived at Earl's Court, the TARDIS dematerialised without him.