One of the most important of these other appearances is David A. McIntee's "Master trilogy" of novels comprising "The Dark Path" and "First Frontier" in the Virgin Publishing lines and "The Face of the Enemy" for BBC Books, and the "Doctor Who" audio dramas produced by Big Finish Productions, in which Geoffrey Beevers has once again played the Master. Alex MacQueen has also played the Master in Big Finish audio dramas.