William H. Marshall / 1970s
William H. Marshall, already known for playing Blacula and respected for his theatrical and screen work, was reportedly unhappy with the making of Abby. His principal grievance was not the film's subject matter but the production's failure to deliver script revisions he had been promised. Marshall believed the role and the film needed stronger material, and the promised changes never materialized. He nevertheless managed to insert some additional elements concerning Yoruba religion, giving the picture a cultural and theological dimension that distinguished it from the Catholic framework of The Exorcist. The dispute illustrates the precarious working conditions of low-budget exploitation filmmaking: performers could be recruited with assurances about improving a screenplay, only to discover that schedule, financing, or the producers' desire to imitate a current hit made those promises impractical. Marshall's dissatisfaction became part of the film's behind-the-scenes lore, even though the available account does not describe a public lawsuit or a physical confrontation.
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