Discover
Original Release
04/25/1974
Cast
| Name | Character |
|---|
| George Sewell | Detective Chief Inspector Alan Craven / Det Ch Supt Alan Craven |
| Patrick Mower | Detective Chief Inspector Tom Haggerty / Tom Haggarty |
| Frederick Jaeger | Commander Fletcher |
| Damien Thomas | Gunter Hellman |
| Ann Firbank | Gisela Hellman |
| Keith Buckley | Martin Kingswood |
| Susan Tebbs | Dr. Barbara Latimer |
| Patrick Troughton | Professor Frederick Denny |
| Gareth Thomas | Steve Ryman |
| Susan Jameson | Detective Sgt. Mary Holmes |
Directors
Writers
Cast
| Name | Character |
|---|
| George Sewell | Detective Chief Inspector Alan Craven / Det Ch Supt Alan Craven |
| Patrick Mower | Detective Chief Inspector Tom Haggerty / Tom Haggarty |
| Frederick Jaeger | Commander Fletcher |
| Damien Thomas | Gunter Hellman |
| Ann Firbank | Gisela Hellman |
| Keith Buckley | Martin Kingswood |
| Susan Tebbs | Dr. Barbara Latimer |
| Patrick Troughton | Professor Frederick Denny |
| Gareth Thomas | Steve Ryman |
| Susan Jameson | Detective Sgt. Mary Holmes |
| Peter Cellier | Sir Terence Gabon |
| Paul Antrim | Detective Sgt. Maguire |
| Donald Eccles | Bishop Garnett-Templeton |
| Geoffrey Lumsden | Appeal Chairman |
| Susan Richards | Mrs. Ryman |
| Michael Guest | TV Reporter |
| Paul Eddington | Strand |
Producers
| Name | Role |
|---|
| Lloyd Shirley | Executive Producer |
| George Taylor | Executive Producer |
| Ted Childs | Producer |
