Richard (Prologue to The Centenarian)
From Tardis Wiki, the free Doctor Who reference
Richard was an aristocrat in 1906.
On Monday 25 June 1906, Richard and his girlfriend Violet told the First Doctor where to find Mary Grainger. (PROSE: Prologue) Later that day, Richard was possessed by the Bruce Master. (PROSE: Forgotten) The Master discovered that his possession caused the host body to rapidly decay, so he left Richard's body, killing him. (AUDIO: Mastermind)
