The cancellation was primarily driven by high production costs, particularly for special effects, and the impact of the Writers Guild Strike

According to the show's creators and industry reports, financial considerations were central to Paramount+'s decision. Evil's supernatural premise required extensive visual effects work for its demonic possessions, miraculous events, and otherworldly phenomena, making it significantly more expensive to produce than standard dramas. When combined with the industry-wide disruption of the 2023 Writers Guild Strike—which halted production and increased costs across television—the financial burden became unsustainable for the network. Michelle King explicitly mentioned money as a likely factor in Deadline's interview, while Robert King noted the strike's impact. The Kings emphasized they were grateful to have concluded the story on their terms despite these external pressures.