 John WayneLt. Jim Brannigan | Lt. Jim Brannigan |
 Richard AttenboroughCmdr. Charles Swann | Cmdr. Charles Swann |
 Judy GeesonDS Jennifer Thatcher | DS Jennifer Thatcher |
 Mel FerrerMel Fields | Mel Fields |
 John VernonBen Larkin | Ben Larkin |
 Ralph MeekerCapt. Moretti | Capt. Moretti |
 Barry DennenJulian | Julian |
 Lesley-Anne DownLuana | Luana |
 Del HenneyDrexel | Drexel |
 James BoothCharlie-the-Handle | Charlie-the-Handle |
 Brian GloverJimmy-the-Bet | Jimmy-the-Bet |
 John StrideInsp. Traven | Insp. Traven |
 Daniel PilonGorman | Gorman |
 Arthur BatanidesAngell | Angell |
 Pauline DelaneyMrs Cooper | Mrs Cooper |
 Stewart BevanAlex | Alex |
 Don HendersonGeef | Geef |
 Anthony BoothFreddy | Freddy |
| JJanette LeggeMiss Rooke | Miss Rooke |
 Tony RobinsonMotorcycle Courier | Motorcycle Courier |
 Kathryn Leigh ScottMiss Allen | Miss Allen |
| MMichael CraneBoyle | Boyle |
| TTim BarlowCustoms Inspector (uncredited) | Customs Inspector (uncredited) |
| DDel BakerMan in Bar (uncredited) | Man in Bar (uncredited) |
| EErnest BlythGentlemans Club Member (uncredited) | Gentlemans Club Member (uncredited) |
| WWilly BowmanClub Member (uncredited) | Club Member (uncredited) |
 Mark BurnsJennifer's Fiance (uncredited) | Jennifer's Fiance (uncredited) |
| JJohn CannonPoliceman getting into car (uncredited) | Policeman getting into car (uncredited) |
| DDerek ChaferPoliceman (uncredited) | Policeman (uncredited) |
 Alan ChuntzMan in Bar (uncredited) | Man in Bar (uncredited) |
