FX and Legendary TV are developing crime drama “A Really Bad Person,” written by “KPop Demon Hunters” co-writers Danya Jimenez and Hannah McMechan

FX is developing a new scripted crime drama titled “A Really Bad Person,” with writers Danya Jimenez and Hannah McMechan attached to pen the series, Deadline reported on Aug. 6, 2026. The project marks Jimenez and McMechan’s first series development work as a writing pair, according to the report.

Deadline said “A Really Bad Person” is being developed for FX. It is described as a crime drama with comedic overtones, though the report did not provide episode count, premiere timing, or a detailed logline beyond the genre and tonal note.

The series is set up as a co-production between Legendary Entertainment and FX Productions, with the companies sharing development responsibilities. No cast, characters, or production schedule were reported in the same account.

Jimenez and McMechan’s recent work includes “KPop Demon Hunters,” a pairing of the creators’ genre interests that Deadline highlighted as the context for their next step into series development. The earlier project is referenced in the reporting as the basis for bringing the writers to “A Really Bad Person.”

Deadline did not name additional executive producers, showrunner candidates, or specific production partners beyond the companies already attached, and it did not describe where the story is set or how it intersects with established genre conventions. It also did not specify whether the project will remain strictly within cable-cast conventions or if it is intended to travel to other platforms under FX’s distribution model.

Industry development at FX and with Legendary TV typically advances through internal approvals, writing milestones, and casting before a production order is issued. As of publication, Deadline’s account indicated development status rather than a series greenlight, meaning no public production timeline was confirmed.

The next step for “A Really Bad Person” will be further development by the writing team and production companies, followed by FX and Legendary’s decision-making on whether to move the project toward a formal series pickup. Until additional details are announced, viewers and industry observers will have only the title, the attached writers, and the stated co-production structure to track the project’s evolution.