The Devil's Disciple is an 1897 play written by Irish dramatist George Bernard Shaw. Set in Colonial America during the Revolutionary era, the play tells the story of Richard Dudgeon, a local outcast and self-proclaimed "Devil's disciple". In a twist characteristic of Shaw's love of paradox, Dudgeon sacrifices himself in a Christ-like gesture despite his professed Infernal allegiance.

References:
https://en.wikipedia.org/wiki/The_Devil%27s_Disciple