Anthony Quinn (Omar Mukhtar), Rod Steiger (Benito Mussolini), Oliver Reed (Gen. Rodolfo Graziani), Irene Papas (Mabrouka), Raf Vallone (Colonel Diodiece), Sir John Gielgud (Sharif El Gariani), Andrew Keir (Salem), Gastone Moschin (Major Tomelli), Stefano Patrizi (Lt. Sandrini), Adolfo Lastretti (Colonel Sarsani), Sky Dumont (Prince Amadeo), Takis Emmanuel (Bu-Matari), Rodolfo Bigotti (Ismail), Robert Brown (Al Fadeel), Eleonora Stathopoulou (Ali's mother), Luciano Bartoli (Captain Lontano), Franco Fantasia (Governor General), Luciano Catenacci (Italian Sergeant), Claudio Gora (President of the Court), Giordano Falzoni (Judge at Camp), Ihab Werfali (Ali), Ewen Solon (Italian Tank Commander), Loris Bazzocchi (), Alec Mango (), Filippo De Gara (), George Sweeney (Captain Biagi), Victor Baring (), Pietro Brambilla (Young Soldier), Pietro Tordi (Field Marshall), Mario Feliciani (Lobitto), Gianfranco Barra (Abdul), Piero Gerlini (Barillo), Lino Capolicchio (Captain Bedendo), Lorenzo Piani (Prisoner Escort), Tom Felleghy (Italian General (uncredited)), Mark Colleano (Infantry Corporal (uncredited)), Angelo Ragusa (Arab Caught in Barbed Wire (uncredited)), Amedeo Salamon (Man Watching Trail (uncredited)), Alfonso Giganti (Military Judge (uncredited)), Scott Richard Fensome (Machine Gun Sergeant (uncredited))