The Greatest, the first authorized scripted series chronicling the life of Muhammad Ali, will debut all 8 episodes  in more than 240 countries and territories worldwide on November 4, 2026, exclusively on Prime Video.

Jaalen Best stars as “Cassius Clay”/Muhammad Ali, alongside  Omari Hardwick as “Cassius Clay Sr.,”

The Amazon MGM Studios and Prime Video story traces Muhammad Ali’s coming of age story, following a young Cassius Clay through the personal, professional and political battles he fought inside and outside the ring. Set against a changing America, The Greatest follows a once-in-a-generation talent fighting for the right to become his own man. Through the fights that made him a champion and the convictions that made him an icon, a young man from Louisville transforms himself into Muhammad Ali, the greatest of all time.

Dana Gourrier as “Odessa ‘Bird’ Clay,”

Newcomer, Jaalen Best stars as “Cassius Clay”/Muhammad Ali, alongside a star-studded line up of castmates, including Omari Hardwick as “Cassius Clay Sr.,” Dana Gourrier as “Odessa ‘Bird’ Clay,” Kai Parham as “Rudy Clay,” Amin Joseph as “Sonny Liston,” Giovanni Ribisi as “Angelo Dundee,” and Michael Ealy as “Malcolm X.”

Lonnie Ali with the cast of The Greatest,”

With Lonnie Ali, wife of the late legend as executive producer, The Greatest is the first authorized scripted series about the life of Ali created and executive produced by Ben Watkins who also serves as showrunner.
Alongside Ben Watkins’ Blue Monday Productions (Cross), and Michael B. Jordan’s Outlier Society, are Authentic Studios (a division of Authentic Brands Group), Roc Nation, Shawn Carter, Polygram Entertainment (a Universal Music Group partner) and Grace: A Storytelling Company, with Watkins as showrunner and executive producer.
Outlier Society president Elizabeth Raposo executive produces, along with Authentic Brands Group’s Corey Salter, Matthew Gross, and Marc Rosen, also serving as executive producers. Additional executive producers include Craig Siebels, Aiyana White, Jeff Augustin, Katie Wech, Owen Shiflett; Boyd Muir, Michele Anthony, and Josh Wakely via his Grace: A Storytelling Company and Co-EPs David Blackman for Polygram and Stefano Agosto, Executive Vice President of Television at Outlier Society; as well as Desiree Perez of Roc Nation.

Kai Parham as “Rudy Clay,” with Jaalen Best

Giovanni Ribisi as Angelo Dundee

Michael Ealy as Malcolm X