There's a Dr. in Watts name of Pryde,
With a lot he keeps bottled inside
If you hustle, sweet sister,
Don't you tussle with "Mr.",
That monstrous pale rotter called Hyde.
Supernatural blaxploitation extra: Bernie Casey stars as Dr. Pryde, aka Dr. Black, Mr. Hyde (William Crain, 1976), whose "albino" alter ego has it in for hookers and pimps. Read more on the film here.