Spies pursue a stolen diary aboard the Orient Express.
| Directing | John Paddy Carstairs | Director |
| Sound | Benjamin Frankel | Music |
| Writing | William Douglas-Home | Writer |
| Crew | Charles Staffell | Special Effects |
| Production | George H. Brown | Producer |
| Writing | Clifford Grey | Story |
| Art | Betty Pierce | Assistant Art Director |
| Art | Ralph W. Brinton | Art Direction |
| Camera | Jack Hildyard | Director of Photography |
| Sound | Kenneth Heeley-Ray | Sound Effects Editor |
| Editing | Sidney Stone | Editor |
| Writing | Allan MacKinnon | Screenplay |
| Sound | George Croll | Sound Recordist |
| Sound | John W. Mitchell | Sound Recordist |
