 | Victor Mature als Captain |
 | Jean Simmons als Lavinina |
 | Alan Young als Androcles |
 | Robert Newton als Ferrovius |
 | Maurice Evans als Caesar |
 | Elsa Lanchester als Megaera |
 | Reginald Gardiner als Lentulus |
 | Gene Lockhart als Menagerie Keeper |
 | Alan Mowbray als Editor of Gladiators |
 | Noel Willman als Spintho |
 | John Hoyt als Cato |
 | Jim Backus als Centurion |
 | Lowell Gilmore als Metellus |
 | Woody Strode als The Lion |
 | Strother Martin als Soldier (uncredited) |
| Chester Erskine | Adaptation |
| Ken Englund | Adaptation |
| Chester Erskine | Director |
| George Bernard Shaw | Theatre Play |
| Gabriel Pascal | Producer |
| Mel Berns | Makeup Artist |
| Harry Stradling Sr. | Director of Photography |
| Nicholas Ray | Co-Director |
| Emile Santiago | Costume Design |
| Lewis J. Rachmil | Associate Producer |
| Friedrich Hollaender | Music |
| Roland Gross | Editor |
| Harry Horner | Production Design |
| William Cameron Menzies | Production Design |
| Albert S. D'Agostino | Art Direction |
| Charles F. Pyke | Art Direction |
| Al Orenbach | Set Decoration |
| Darrell Silvera | Set Decoration |
| Larry Germain | Hairstylist |
| Gregg Peters | Assistant Director |
| Coby Ruskin | Assistant Director |
| Arthur J. Vitarelli | Assistant Director |
| John L. Cass | Sound |
| Clem Portman | Sound |
| Wayne Burson | Stunts |
| Stubby Kruger | Stunts |
| Alex Sharp | Stunts |
