Trailer
Images
 | Richard Todd as Lieutenant-Commander John Simon Kerans |
 | William Hartnell as Leading Seaman Leslie Frank |
 | Akim Tamiroff as Colonel Peng |
 | Donald Houston as Lieutenant Weston |
 | Keye Luke as Captain Kuo Tai |
 | Sophie Stewart as Miss Charlotte Dunlap |
 | Robert Urquhart as Flight Lieutenant Fearnley |
 | Richard Leech as Lieutenant Strain |
 | Barry Foster as Petty Officer McCarthy |
 | Thomas Heathcote as Mr. Monaghan |
 | Sam Kydd as Able Seaman Walker |
 | Ewen Solon as ERA Williams |
 | Kenneth Cope as Mr. McNamara |
 | Alfred Burke as Petty Officer |
 | Richard Coleman as Lieutenant Commander Skinner |
 | Ian Bannen as Able Seaman Bannister |
 | Gene Anderson as Ruth Worth |
 | Bernard Cribbins as Able Seaman James Bryson |
 | Brian Smith as Boy Martin |
 | Ray Jackson as Telegraphist Jack Leonard French |
 | Anthony Chinn as PLA Officer |
 | Allan Cuthbertson as Captain Donaldson |
 | Basil Dignam as Sir Lionel Henry Lamb, British Ambassador to China |
 | John Paul as Staff Officer Operations |
 | Ralph Truman as Vice Admiral |
| Jeremy Burnham as Flag Lieutenant |
 | Cyril Luckham as Commander in Chief |
| Michael Brill as Lieutenant Peter Egerton |
 | Ballard Berkeley as Lieutenant Colonel Dewar-Curie |
| Keith Faulkner as Signalman |
| Rhett Ward as Lieutenant Mirehouse |
 | Philip Vickers as Surgeon Lieutenant Packard |
 | Tsai Chin as Sampan Woman |
| Production | |
| Herbert Wilcox | Producer |
Writing | |
| Eric Ambler | Screenplay |
Directing | |
| Michael Anderson | Director |
Writing | |
| Lawrence Earl | Novel |
| Franklin Gollings | Story |
Production | |
| Franklin Gollings | Associate Producer |
Editing | |
| Basil Warren | Editor |
Art | |
| Ralph W. Brinton | Art Direction |
Directing | |
| Denis Johnson | Assistant Director |
Camera | |
| Gordon Dines | Director of Photography |
Sound | |
| Leighton Lucas | Original Music Composer |
