Doctor Svengali was known as the Master of Mesmerism, Prestidigitation, Chicanery and Sleight-of-hand. The Fourth Doctor was once mistaken for Svengali. (PROSE: Ghost Ship [+]Loading...["Ghost Ship (novel)"])
Ian Chesterton compared the Master to Svengali. (PROSE: The Face of the Enemy [+]Loading...["The Face of the Enemy (novel)"])
Behind the scenes
Arnold Korns is described as a "starmaking Svengali" in the synopsis for Horror of Glam Rock (audio story).