Inque is a shapeshifting villain in the DC Comics universe, primarily associated with the Batman Beyond series. She first appeared in the animated episode "Black Out," which aired on January 30, 1999, as part of Batman Beyond season one. Created as a corporate saboteur, Inque possesses a mutable, ink-like body resulting from an experimental mutagenic procedure that grants her the ability to alter her form, infiltrate restricted areas, and withstand significant physical damage. Her human appearance conceals a featureless black liquid state, making her a highly adaptable mercenary often employed for industrial espionage in the futuristic Gotham City.

Throughout the Batman Beyond animated series, Inque established herself as one of Terry McGinnis's most recurring and dangerous adversaries, appearing in four episodes. Her initial employment by Derek Powers (later revealed as Blight) led to multiple confrontations with the new Batman, during which she demonstrated resilience by surviving defeats involving freezing and other countermeasures exploiting her vulnerabilities, such as water and extreme cold. Key developments included her escape from captivity with assistance from an infatuated guard and efforts to stabilize her deteriorating powers through scientific intervention, highlighting her resourcefulness and determination.

Inque's narrative extended into DC Comics publications, beginning with her comic debut in Batman Beyond #6 in 1999. Subsequent appearances in titles such as Batman Beyond 2.0 and crossovers like Futures End explored deeper aspects of her character, including the revelation of her daughter, Deanna Clay, whom she sought to protect or involve in her schemes, adding personal stakes to her criminal pursuits. These stories portrayed temporary alliances and ongoing rivalries, cementing Inque's status as a persistent threat defined by her enigmatic origins and unique physiology.