| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Agatha Christie | Crew | Writing | Story | 1 |
 Cecil Clarke | Crew | Production | Producer | 1 |
Frederick Pusey | Crew | Art | Production Design | 2 |
Jacques Gillies | Crew | Writing | Writer | 1 |
 Peter Graham Scott | Crew | Directing | Director, Writer | 2 |
 Quentin Lawrence | Crew | Directing | Director | 1 |
Reece Pemberton | Crew | Art | Production Design | 1 |
 Troy Kennedy Martin | Crew | Writing | Adaptation | 1 |
Vic Symonds | Crew | Art | Production Design | 1 |
Philip Mackie | Crew | Production | Producer, Writer | 51 |
William Fairchild | Crew | Writing | Writer | 1 |
Michael Wield | Crew | Art | Production Design | 1 |
 Norman Kay | Crew | Sound | Music | 1 |
John Jacobs | Crew | Directing | Director | 2 |
 C.P. Snow | Crew | Writing | Novel | 1 |
Arthur Garratt | Crew | Crew | Technical Advisor | 1 |
Eve Martell | Crew | Writing | Writer | 1 |
Adrienne Frame | Cast | Cortez (as Adrianne Frame) | 1 | |
 Anthony Newlands | Cast | Actor | Steindorf | 1 |
Arthur Lawrence | Cast | Actor | Charles Revere | 1 |
 Brian Worth | Cast | Actor | General Santos | 1 |
 Campbell Singer | Cast | Actor | Robert Campbell | 1 |
Carlos Douglas | Cast | Actor | Gonzales | 1 |
 Charles Kay | Cast | Actor | Eric Sawbridge | 1 |
 Conrad Phillips | Cast | Actor | Peter Marriott | 1 |
 Cyril Luckham | Cast | Actor | Arthur Mounteney | 1 |
 Elizabeth Sellars | Cast | Actress | Anne Norbury | 1 |
Frances White | Cast | Actress | Norah Luke | 1 |
 Frederick Jaeger | Cast | Actor | Bequeville | 1 |
Geoffrey Russell | Cast | Actor | Captain Smith | 1 |
 Gwen Watford | Cast | Actress | Silia | 51 |
Hans De Vries | Cast | Actor | Major Nogues | 1 |
 Helen Cherry | Cast | Actress | Linda Cosgrove | 1 |
 Ian Hendry | Cast | Actor | Colonel Guzzman | 1 |
 Jack Hedley | Cast | Actor | 1 | |
Jack Melford | Cast | Actor | Thomas Bevill | 1 |
 Jennifer Daniel | Cast | Actress | Irene Eliot | 1 |
 John Savident | Cast | Actor | Drawbell | 1 |
John Taylor | Cast | Actor | Foster | 51 |
 Kevin Stoney | Cast | Actor | Michael More | 1 |
Lally Bowers | Cast | Actress | Mrs. Gudgeon | 1 |
 Lyndon Brook | Cast | Actor | Martin Eliot | 1 |
 Marius Goring | Cast | Actor | Robert Cosgrove | 1 |
 Meredith Edwards | Cast | Actor | Inspector Davidson | 1 |
 Michael Bryant | Cast | Actor | Walter Luke | 1 |
 Michael Meacham | Cast | Actor | Raymond Wilde | 1 |
 Michele Dotrice | Cast | Actress | Tess Cosgrove | 1 |
 Patricia Driscoll | Cast | Actress | Muriel | 1 |
 Patricia Jessel | Cast | Actress | Miss Forbes | 1 |
Peter Myers | Cast | Actor | Perez | 1 |
 Philip Latham | Cast | Actor | Pearson | 1 |
Richard Garcia | Cast | Lieutenant Sanchez | 1 | |
 Richard Vernon | Cast | Actor | Sir Hector Rose | 1 |
 Virginia Maskell | Cast | Actress | 1 | |
 Wilfrid Lawson | Cast | Actor | Old Man | 1 |
James Luck | Cast | Actor | Pte. Rodriguez | 1 |
David Saire | Cast | Pepe | 1 | |
Robert Raikes | Cast | Terry Webb | 1 | |
David Cargill | Cast | Pte. Martinez | 1 | |
Susan Willemen | Cast | Ann Gudgeon | 1 | |
Achilles Georgiou | Cast | Gomez | 1 | |
Luis Nicolau | Cast | Pte. Padros | 1 | |
Raymond Byron | Cast | Captain Zabalo (as Raymond Byrom) | 1 | |
Seraphim Nicola | Cast | Cpl. Duarte (as Seraphim Nicolau) | 1 | |
Hilary Liddell | Cast | Jane Hornby | 1 | |
Maria Warburg | Cast | Lieutenant Santamaria | 1 | |
Peter Jacobou | Cast | Pte. Zamora (as Peter Jacovou) | 1 | |
| Person | Type | Job | Role(s) | Episodes |
