Unmaskers were non-sentient creatures used by the Yuuzhan Vong to scare ooglith masquers and cause them to reveal the identities of their wearers. Unmaskers were ill-tempered, had sharp teeth, and resembled a cross between a ng'ok and a quillarat. In the year 25 ABY, one was used by members of the Peace Brigade to identify the Yuuzhan Vong Priestess Elan aboard the luxury liner Queen of Empire.