A Scottish warlord and his wife murder their way to a pair of crowns.
| Directing | Orson Welles | Director |
| Writing | William Shakespeare | Novel |
| Writing | Orson Welles | Screenplay |
| Production | Orson Welles | Producer |
| Sound | Jacques Ibert | Music |
| Camera | John L. Russell | Director of Photography |
| Editing | Louis Lindsay | Editor |
| Art | Fred A. Ritter | Art Direction |
| Art | John McCarthy Jr. | Set Decoration |
| Art | James Redd | Set Decoration |
| Costume & Make-Up | Fred A. Ritter | Costume Design |
| Costume & Make-Up | Orson Welles | Costume Design |
| Costume & Make-Up | Peggy Gray | Hairstylist |
| Costume & Make-Up | Bob Mark | Makeup Supervisor |
| Costume & Make-Up | Maurice Seiderman | Makeup Artist |
| Sound | Garry A. Harris | Sound Designer |
| Sound | John Stransky Jr. | Sound Designer |
| Art | Orson Welles | Set Designer |
| Production | Richard Wilson | Associate Producer |
| Sound | Efrem Kurtz | Conductor |
| Costume & Make-Up | Adele Palmer | Costume Designer |
| Crew | Howard Lydecker | Special Effects |
| Crew | Theodore Lydecker | Special Effects |
