Mephistophelian

But, sitting by the opening of Ismail's Muslim Eating Shop, Inder Singh was spooning in soup, tall, thin, saturnine, his beard cut, contrary to the laws of religion, trimmed in a Mephistophelian manner, his turban neat and starched[.]

And you can see from the Spockian ears and the raised eyebrows, he had a positive Mephistophelian look.