 | Helen Morse als Narrator |
 | Normie Rowe als Harold Holt |
 | Nicholas Hope als William McMahon |
 | Tony Llewellyn-Jones als John McEwen |
 | Matthew O'Sullivan als Governor General Lord Casey |
| Gloria Ajenstat als Mrs Gillespie |
 | David Callan als Maxwell Newton |
 | Kuni Hashimoto als Japanese Ambassador |
| Lawrence Price als Alan Stewart |
| Michael Howlett als Martin Simpson |
| Calvin Gardiner | Director of Photography |
| Guy Gross | Music |
| Beverly Freeman | Costume Designer |
| Lynda Wilkinson | Line Producer |
| Ian Astridge | First Assistant Director |
| Leo Sullivan | Sound Recordist |
| Kathy Moore | Production Coordinator |
| Craig Mandile | Production Design |
| Peter McDougall | Underwater Director of Photography |
| Felix Reiten | Unit Manager |
| Julian Ellingworth | Sound Mixer |
| Jules Sound | Sound Mixer |
| Finnegan Spencer | Title Designer |
| Peter Butt | Director |
| Peter Butt | Writer |
| Peter Butt | Editor |
| Sally Regan | Co-Producer |
| Peter Butt | Producer |
| Alan Erson | Commissioning Editor |
