| Burt Lancaster | Sgt. Milton Warden |
| Deborah Kerr | Anna Leonowens,Anne Larsen,Lygia,Sister Clodagh,Karen Holmes,Portia |
| Marlon Brando | Marc Antony |
| Robert Taylor | Marcus Vinicius |
| David Niven | Raymond |
| James Mason | Brutus |
| Montgomery Clift | Robert E. Lee Prewitt |
| Yul Brynner | The King of Siam |
| Jean Seberg | Cecile |
| John Gielgud | Cassius |
| Leo Genn | Petronius |
| Rita Moreno | Tuptim |
| Sabu | Young Prince |
| David Farrar | Mr. Dean |
| Donna Reed | Alma Lorene |
| Louis Calhern | Julius Caesar |
| Martin Benson | Kralahome |
| Mylène Demongeot | Elsa Mackenbourg |
| Peter Ustinov | Nero |
| Frank Sinatra | Angelo Maggio |
| Geoffrey Horne | Philippe |
| Greer Garson | Calpurnia |
| Kathleen Byron | Sister Ruth |
| Patricia Laffan | Poppaea |
| Terry Saunders | Lady Thiang |
| Edmond O'Brien | Casca |
| Esmond Knight | Old General |
| Jean Kent | Mrs. Lombard |
| Rex Thompson | Louis Leonowens |
| Carlos Rivas | Lun Tha |
| Flora Robson | Sister Philippa |
| Roland Culver | Mr. Lombard |
| Jean Simmons | Kanchi |
| Patrick Adiarte | Prince Chulalongkorn |
Technical Credits
| Emeric Pressburger | Director |
| Fred Zinnemann | Director |
| Joseph L. Mankiewicz | Director |
| Mervyn LeRoy | Director |
| Otto Preminger | Director |
| Walter Lang | Director |
| Michael Powell | Director |