Known by the Tsimshian word ‘Gadaxanis’, Intruder masks were part of a humorous social dance originally performed by Tlingit communities when depicting their Athapaskan neighbours. The dance and its associated mask eventually found their way into the Kwakwa̱ka̱ʼwakw winter ceremony. Emerging from diffuse cultural interactions, Intruder masks highlight the complex networks of mimicry and exchange t…