| John Dickson Carr |
– Author |
| Bjørn Carling |
– Adapted by |
| Nils Nordberg |
– Adapted by (Tilrettelagt) |
| Peter Ling |
– Dramatised by |
| Bjørn Carling |
– Translation |
| Nils Nordberg |
– Direction |
| Sigurd Jansen |
– Music |
| Sverre Bentzen |
– Actor (Professor Grimaud) |
| Gerhard Bjelland |
– Actor (Pierre Fley) |
| Trond Brænne |
– Actor (Michael O'Rourke) |
| Kim Haugen |
– Actor (Stuart Mills) |
| Jan Hårstad |
– Actor (Jerome Burnaby) |
| Svein Roger Karlsen |
– Actor (Betjent Betts) |
| Merete Moen |
– Actor (Ernestine Dummont) |
| Ole-Jørgen Nilsen |
– Actor (Inspektør Hadley) |
| Sverre Solberg |
– Actor (Boyd Mangan) |
| Tor Stokke |
– Actor (Dr. Gideon Fell) |
| Andrine Sæther |
– Actor (Rosette Grimaud) |
| Arne Aas |
– Actor (Henry Drayman) |
| Gjertrud Helland |
– Stage manager |
| Nils Nordberg |
– Other (Annonsering) |
| Arne Barca |
– Technical direction |
