skulduggerist

plural skulduggerists

1. rareSomeone who partakes in skulduggery (dishonest, underhanded, or unscrupulous activities or behaviour).

   1 more example

   Down through the centuries various Black Science practitioners and cadre—from individual charlatans, schemers, political and fanatical snipes, and skulduggerists, to secret societies with all color of hidden agenda—every possible failing of humanity has been explored—and then exploited!—to the meteoric rise of some, the pitiful downfall of others.

   2007, Haha Lung, Mind Penetration: The Ancient Art of Mental Mastery, New York, N.Y.: Citadel Press, →ISBN, page 1

   Synonyms: skulduggerer