Directed by
| Peter Potter | ||
Writing Credits (in alphabetical order)
| Robert Holmes | ... | (written by) |
Cast (in credits order) complete, awaiting verification
| Jeremy Wilkin | ... | Drew Heriot | |
 |
Rosemary Nicols | ... | Anne Heriot |
| John Barron | ... | Sir Geoffrey Tillinger | |
| George Baker | ... | Thallon | |
|
|
David Phethean | ... | Caper |
| Barry Warren | ... | Killick | |
| Michael Lees | ... | Raison | |
| Richard Owens | ... | Reynolds | |
| Alex McCrindle | ... | Professor Emmett | |
|
|
Beryl Baxter | ... | Veronica |
|
|
Jessie Barclay | ... | Mrs. McLeod |
| Terry Taplin | ... | Cleary (as Terence Taplin) | |
|
|
Vernon Joyner | ... | Selwyn Pugh |
Produced by
| Michael Chapman | ... | producer |
Music by
| Paul Lewis | ... | (theme music) |
Production Design by
| Stephen Doncaster | ... | (designed by) |