Khigh Diegh (who was actually of Egyptian and Sudanese descent) played a very similar role in John Frankenheimer's The Manchurian Candidate, that of a Chinese agent using hypnotism to wreak havoc in the USA.
the part of Che Fong is most associated with Harry Endo. In this episode he is played by Danny Kamekona.
This was the first of two guest appearances by Eric Braeden where he played a bad guy using hypnosis to manipulate women. The other appearance was in a 1980 episode of "Charlie's Angels".