

The Greatest
Fresh off gold at the 1960 Olympics, young boxer Muhammad Ali (then known as Cassius Clay) sets his sights on the Heavyweight Championship. Contending with newfound fame, self-doubt, family conflict and a politically charged America, the once-in-a-generation prodigy discovers his greatest opponent won't be in the ring, but in a society that isn't ready for him to become his own man.
Watch The Greatest (2026) Free Online in HD
Stream The Greatest online for free in full HD on StreamVault — no sign up, no subscription. All seasons available to watch instantly in high quality.
Watch Trailer
Cast

Jaalen Best
Cassius Clay / Muhammad Ali

Omari Hardwick
Cassius 'Cash' Clay Sr.

Dana Gourrier
Odessa 'Bird' Clay

Amin Joseph
Sonny Liston

Kai Parham
Rudy Clay

Giovanni Ribisi
Angelo Dundee

Reno Wilson
Drew 'Bundini' Brown

Erica Tazel
Geraldine Liston

Aleks Paunovic
William Faversham Jr.











