Henry Gordon Jago was the owner of the Palace Theatre in London, where Li H'sen Chang performed his magic act.
Biography
Jago and Professor Litefoot aided the Doctor and Leela in defeating Magnus Greel. (DW: The Talons of Weng-Chiang) His association with Professor Litefoot was known to have continued beyond their adventure with the Doctor. (EDA: The Bodysnatchers) The pair were involved as amateur sleuths in several other mysteries. (CC: The Mahogany Murderers, BFJL: Jago and Litefoot)