Riley Keough to Star in HBO Casino Drama ‘Advantage Player’ Written by Will Graham

HBO is developing Advantage Player, a casino drama series that stars and is executive produced by Riley Keough, according to an exclusive report from Deadline published on August 14, 2026. The project, described as competitive and rooted in the world of high-stakes gambling, is set up at HBO with a writing and executive producing team led by Will Graham.

Deadline reports that Advantage Player is inspired by real-life advantage player Gina Fiore, a figure associated in public accounts with strategies used to exploit casino rules and patterns. The series is positioned as a dramatization of the advantage-player pursuit, centered on the skills, pressure, and cat-and-mouse dynamics that can come with trying to win consistently in games designed for the house.

The series comes from Media Res, the production company headed by Michael Ellenberg. Deadline says that Advantage Player reunites Keough and Graham, who have worked together previously, and that Graham will write the series and serve as an executive producer. Keough is also credited as an executive producer alongside her starring role, tying the project closely to her creative involvement from the outset.

Deadline’s report does not specify the number of episodes, a premiere date, or casting beyond Keough’s starring role. It also does not detail production timeline, filming locations, or any final series order status, though it frames the project as moving forward in development at HBO.

In addition to the creative team, the report identifies the series as part of HBO’s ongoing slate of scripted development. HBO has not disclosed further package details in the Deadline report, and no additional agreements were described for other cast members or executive producers beyond those credited in the story.

As development proceeds, additional information would typically be expected on the series’ format, episode count, showrunner responsibilities, and the broader casting plan. For audiences, the project indicates a continued interest in gambling-centered storytelling and in characters shaped by niche, high-competence expertise, delivered through the prestige-drama framework associated with HBO.

The advantage-player premise also places the series in a category of entertainment that often intersects with real-world themes, including gaming rules, risk management, and the legal and regulatory constraints surrounding casino operations. For creators and producers, the treatment of those elements can affect how the story is received, including whether it leans on dramatization versus direct depiction of real strategies associated with specific individuals.