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1. old-fashioned A collection of photographs of known criminals and suspects kept and used by police to identify people taken into custody. The constable recognized the shady character from the rogues' gallery back at the station.
2. By extension, any collection of unsavory, unpleasant, or undesirable people or things. Often used humorously or ironically. The film is a veritable rogues' gallery of bad cinema—bad direction, bad acting, bad cinematography, bad everything. The new studio calls is something of a rogues' gallery of developers that used to work for the biggest video game publishers in the industry.
See also: gallery
Collection of “head shot” photographs. A rogues gallery is a compilation of “mug shot” photos of actual and suspected criminals maintained by police departments for purposes of identification. The practice began in the mid-19th century with the development of photography. By extension, any collection of head-and-shoulder photos, such as college fraternity composites and academic yearbooks, is jokingly referred to as rogues galleries.