 | Robert Powell als Gregory Wolfe |
 | David Hemmings als Nick Rast |
 | Carmen Duncan als Sandra Rast |
 | Broderick Crawford als Doc Wheelan |
 | Gus Mercurio als Mr. Bergier |
 | Alan Cassell als Mr. Porter |
 | Mark Spain als Alex Rast |
 | Alyson Best als Alice |
 | Sean Myers als Benny Lucas |
| Mary Simpson als Zoe Cayce |
| Neville Teede als Dr. Barthelemy |
| Anne-Marie Mackay als Miss Edith Twist |
| John Frawley als Dr. Lovelock |
| Nita Pannell als Mabel Wheelan |
| David Hough als Mr. Jepson |
| Klaus Schultz als Arthur |
| Peter West als Godfrey |
| Maurie Ogden als Prison Officer |
| Jack Ferrari als Eli Steele |
 | Jeremy Sims als Young Boy on Raft |
| Toby Amoore als Young Boy on Raft |
| Sebastian Hunsley als Young Boy on Raft |
| Julia Moody als Reporter |
| Leslie Wright als Mayor |
| Adele Cohen als Mayoress |
| Ramsay McLean als Broadcaster |
| John Brownbridge als Police Officer with Binoculars (uncredited) |
| Nicole Dehring als Party Hostess (uncredited) |
| Bevan Lee als Mr. Robinson |
| Simon Wincer | Director |
| Adrian Carr | Editor |
| Antony I. Ginnane | Producer |
| Gary Hansen | Director of Photography |
| William Fayman | Executive Producer |
| Jane Scott | Associate Producer |
| Jeremy Robbins | Clapper Loader |
| Everett De Roche | Screenplay |
| Neill D. Hicks | Additional Dialogue |
| Terry Ryan | Costume Designer |
| Wayne Smith | Construction Grip |
| Robin Morgan | Grip |
| Lois Hohenfels | Makeup Artist |
| Steve Lambeth | ADR & Dubbing |
| Ross Erickson | Key Grip |
| Arthur Cambridge | Colorist |
| Jennifer Barty | Production Secretary |
| William Fayman | Presenter |
| Lynette Thorburn | Publicist |
| Noel Butler | Construction Grip |
| Conrad Rothmann | Special Effects |
| Daro Gunzburg | Production Assistant |
| Gary Wilkins | Sound Recordist |
| Willie Kay | Creative Consultant |
| Ross Skiffington | Creative Consultant |
| Sylvia Van Wyk | Producer's Assistant |
| Michael Langton | Construction Grip |
| Vicki Rowland | Wardrobe Assistant |
| Bernard Hides | Production Designer |
| Cheryl Williams | Hairdresser |
| Virginia Bieneman | Draughtsman |
| Peter Fenton | Sound Mixer |
| Peter West | Stunt Coordinator |
| Russell Hagg | Script Editor |
| Jon George | Additional Dialogue |
| Steve Courtley | Construction Manager |
| Owen Paterson | Assistant Art Director |
| Chris Murray | Special Effects Assistant |
| Peter Sands | Construction Grip |
| Mick Morris | Gaffer |
| Peter Moss | Camera Operator |
| Roger Savage | Recording Supervision |
| Lynn Barker | Production Accountant |
| Terry Rodman | ADR & Dubbing |
| Mark J. Wasiutak | Boom Operator |
| Reg Garside | Best Boy Electric |
| Jan Kenny | Focus Puller |
| Grant Harris | Second Assistant Director |
| Michael Dore | Construction Grip |
| Jenny Miles | Third Assistant Director |
| Brian May | Conductor |
| Russell Naughton | Assistant Music Supervisor |
| Brian May | Original Music Composer |
| Clark Munro | Props |
| Steve Lambeth | Assistant Sound Editor |
| Roger Cowland | Visual Effects |
| Nicholas Clark | Still Photographer |
| Margaret Cardin | Negative Cutter |
| Michael McKeag | First Assistant Director |
| Caroline Stanton | Continuity |
