Mr. Moto goes undercover to find out who has been blowing up oil wells and trying to gain total control of all the oil leases from a petroleum-rich Middle Eastern country.
| Actor | Role |
|---|---|
 Henry SilvaMr. Moto | Mr. Moto |
 Terence LongdonJonathan Westering, MI5 | Jonathan Westering, MI5 |
 Suzanne LloydMaxine Powell | Maxine Powell |
 Marne MaitlandWasir Hussein | Wasir Hussein |
 Martin WyldeckHelmut 'Dargo' Engle | Helmut 'Dargo' Engle |
 Brian CoburnMagda | Magda |
| SStanley MorganInspector Jim Haliday | Inspector Jim Haliday |
| PPeter ZanderCharles Ginelli | Charles Ginelli |
 Harold KasketShahrdar of Wadi | Shahrdar of Wadi |
 Anthony BoothHovath | Hovath |
| GGordon TannerRussell McAllister | Russell McAllister |
| HHenry GilbertDavid Lennox | David Lennox |
| RRichard EvanChief Inspector Marlow | Chief Inspector Marlow |
 Ian FlemingRogers | Rogers |
| DDenis HolmesChapel the fake Halliday | Chapel the fake Halliday |