Trailer
Images
 | Sidney Poitier as Dr. Matt Younger |
 | Ester Anderson as Catherine Oswandu |
 | Yvette Curtis as Stefanie Younger |
 | George Baker as Dr. Henry Barlow |
 | Johnny Sekka as Dr. Joseph Myomo |
 | Earl Cameron as Ambassador George Oswandu |
| Hilary Crane as Marsha Barlow |
| John Beardmore as Burberry Detective (uncredited) |
 | Milos Kirek as General Kuznovski (uncredited) |
| Letta Mbulu as Club Singer (uncredited) |
 | T. P. McKenna as Man (uncredited) |
| James Payne as Taxi Driver at Theatre (uncredited) |
 | Lon Satton as Man (uncredited) |
 | Guy Standeven as Party Guest (uncredited) |
 | Rudolph Walker as Man (uncredited) |
| Directing | |
| Sidney Poitier | Director |
Costume & Make-Up | |
| Harold Melvin | Hairstylist |
| W.T. Partleton | Makeup Artist |
Sound | |
| Coleridge-Taylor Perkinson | Original Music Composer |
Directing | |
| Doreen Soan | Continuity |
Editing | |
| Pembroke J. Herring | Editor |
Writing | |
| Lawrence Roman | Writer |
Camera | |
| Paul Beeson | Director of Photography |
Editing | |
| Peter Pitt | Editor |
Production | |
| Miriam Brickman | Casting |
| Melville Tucker | Producer |
Crew | |
| Tony Brubaker | Stunt Double |
Directing | |
| David Tomblin | First Assistant Director |
Art | |
| Elliot Scott | Art Direction |
Production | |
| Terence A. Clegg | Production Manager |
