| Episode cast overview, first billed only: |
 | Meg Ritchie | - | Gerga Bjornson |
| Brigid Panet | - | Marianne Jenson (as Brigid Planet) |
| Stephanie Bidmead | - | Doctor Fuller |
| Harold Lang | - | Lewthwaite |
| George Eugeniou | - | Andreas Christodoulou |
 | Steven Scott | - | Paul Carter |
| Terence Soall | - | Sam |
| Leonard Fenton | - | Detective Sergeant Halloran |
 | Ian Fairbairn | - | Halloran's Assistant |
 | Frank Mills | - | Messenger |
 | Catherine Finn | - | Inspector Heatherley |
| Doreen Aris | - | Woman Police Constable Jenkins |
 | Mary Hignett | - | Woman Sergeant Matthews |
| Joanne Morris | - | Woman Police Constable Anderson |
| Tom McCall | - | Club Pianist |
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