The Greatest is an upcoming television series biopic of Muhammad Ali from Amazon MGM Studios for Amazon Prime Video. The series is produced in collaboration with Muhammad Ali's estate with executive producer's including his widow Lonnie Ali, as well as Josh Wakely and Michael B. Jordan. The cast is led by Jaalen Best as Cassius Clay/Muhammad Ali. Omari Hardwick and Dana Gourrier were cast as his parents in February 2025. Kai Parham plays Ali’s brother and fellow boxer Rudy. Amin Joseph will feature as Sonny Liston, and Michael Ealy has a recurring role as Malcolm X.