The character upon whom Mariah Dillard is based, Black Mariah, first appeared in Hero for Hire
#5 in January 1973. She was created by writer Steve Englehart and artist George Tuska. Her creation came during the height of the “Blaxploitation” era of filmmaking, a cultural movement that heavily influenced the early adventures of Luke Cage.
Black Mariah was designed as a street-level antagonist who reflected the gritty, urban tone of the Hero for Hire
series. She was not a super-powered threat but a formidable criminal mastermind whose physical bulk and leadership of a gang of thugs, known as the Rivals, made her a significant challenge for Luke Cage. Her initial portrayal was very much a product of its time, an archetypal crime boss whose operations—which included running a stolen ambulance service to rob the vulnerable—were a direct threat to the people of Harlem that Luke Cage had sworn to protect. While she would appear sporadically over the decades, she remained a relatively minor villain in Luke Cage's rogues' gallery until her character was radically re-interpreted for television.
The origins of Mariah Dillard and her comic book counterpart are profoundly different, representing one of the most significant adaptations in the transition from Marvel Comics to the MCU.
In the primary Marvel comics continuity, the character known as Mariah is a career criminal named Black Mariah.