Svengali, Svengali

A sensation in its day, the novel created a stereotype of the evil hypnotist that persists to this day. The character was portrayed in many silent film versions of the story, and in talking pictures by John Barrymore in a 1931 film of the same name, by Donald Wolfit in a 1954 version in Technicolor, and by Peter O'Toole in a 1983 made-for-television modernized version, also in color, co-starring Jodie Foster. This last one changed the names of all the characters, but was still called Svengali.

Source: Wikipedia > Svengali