Prime Video has announced a new biopic series on Muhammad Ali, titled "The Greatest". The eight-episode biographical sports drama limited series about the boxing legend is slated for premiere on Wednesday, November 4, 2026. Jaalen Best plays the lead Cassius Clay/Muhammad Ali. Ben Watkins is the creator and showrunner. Ali's widow, Lonnie Ali, is involved as executive producer alongside Michael B. Jordan (through his Outlier Society production banner).
The series features a star-studded cast portraying critical figures in Ali's life: Michael Ealy as civil rights leader Malcolm X; Amin Joseph as fierce rival Sonny Liston; Giovanni Ribisi as legendary boxing trainer Angelo Dundee; Omari Hardwick & Dana Gourrier play Ali's parents, Cassius Clay Sr. and Odessa Grady Clay, while Kai Parham essays Ali's brother, Rahman Ali.
How different is the series from the films?
Unlike the movies, most notably Michael Mann's 2001 biopic "Ali", which was directly approved by the legend himself, "The Greatest" is the first-ever scripted series fully authorised by Ali's estate. The series promises a deeply intimate exploration of his life as a man, husband, father, brother, and son, focusing on elements hitherto unexplored in previous documentaries or film adaptations. The series is expected to have a different scope and narrative format, and level of real-world family involvement. Because it is executive-produced directly by his widow, Lonnie Ali, alongside the estate, the production has unprecedented access to private family archives, personal perspectives, and stories that have never been made public.
While films like "Ali" secured life rights to depict his story, they operated as independent Hollywood interpretations rather than direct, estate-backed collaborations. The first season acts strictly as a focused, intimate coming-of-age story. Ben Watkins confirmed that Season 1 begins with Ali's gold medal win at the 1960 Rome Olympics and concludes with his 1964 heavyweight victory over Sonny Liston. It intentionally highlights his early formative years as Cassius Clay before he formally changed his name.
The Will Smith film skipped his early childhood and Olympic rise entirely. It focused on a different, compressed decade of his life (1964 to 1974), starting exactly where "The Greatest" Season 1 is expected to end (the Sonny Liston fight) and concluding with the "Rumble in the Jungle" against George Foreman.
Furthermore, the eight-episode format gives the narrative breathing room to explore Ali's private life. In contrast, the film adaptations and the 1977 documentary had to rush through complex personal relationships to fit into a standard two-to-three-hour duration.
