One who wears a disguise; an actor in a masquerade; a masker.(noun)
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Use "disguiser" in a sentence
"I picked up the phone again, engaging maximum encryption, a voice disguiser, and a masked code of my own to accommodate the server-link to Mahtani."
""Mr McInnes," they heard, metallic, voice-disguiser tones emanating from the small speaker next to the rotating spools of the cassette, which seemed to be operational in spite of the contraption's lack of casing and generally disembowelled appearance."
"Despite the disguiser, they could make out that the voice was male, and there was enough tone in the accent for them to reckon he was English."