Percival Quick

PC Quick was a London police officer who served under Sergeant Kyle in the Metropolitan Police Service. He investigated the murder of Buller and reported his findings to the pathologist Professor George Litefoot. (DW: The Talons of Weng-Chiang)

Quick was later promoted to Sergeant, and called upon Jago and Litefoot in their new capacity as paranormal investigators. (JAL: The Bloodless Soldier, et al)