Series Directed by
| Vere Lorrimer | ... | (9 episodes, 1957-1958) |
| Leonard Chase | ... | (7 episodes, 1958) |
| Gerald Wiltshire | ... | (5 episodes, 1958) |
| Graham Gauld | ... | (1 episode, 1959) |
Series Writing Credits
| Eric Allen | ... | (writer: The Six Clue Challenge) (unknown episodes) |
| Edward Barnes | ... | (writer: The Six Clue Challenge) (unknown episodes) |
| Douglas Camfield | ... | (writer: The Six Clue Challenge) (unknown episodes) |
| Vere Lorrimer | ... | (writer: The Six Clue Challenge) (unknown episodes) |
| Vere Lorrimer | ... | (writer) (58 episodes, 1957-1962) |
| Vere Lorrimer | ... | (writer: The Playbox Detective Agency) (unknown episodes) |
| Max Marquis | ... | (writer: Brief Cases) (unknown episodes) |
| Cliff Michelmore | ... | (writer) (13 episodes, 1957-1958) |
Series Cast
Series Produced by
| Cliff Michelmore | ... | producer (47 episodes, 1955-1958) |
| Gerald Wiltshire | ... | producer (37 episodes, 1958-1961) |
| John Furness | ... | producer (30 episodes, 1961-1963) |
| Rosamund Davies | ... | producer (4 episodes, 1960) |
| Vere Lorrimer | ... | producer (3 episodes, 1957) |
| Tony Arnold | ... | producer (1 episode, 1960) |
| Johnny Downes | ... | producer (unknown episodes) |
Series Production Design by
| Austen Spriggs | ... | (3 episodes, 1959) |
| Charles Lawrence | ... | (2 episodes, 1960) |
| Stanley Dorfman | ... | (1 episode, 1960) |
Series Art Department
| Tony Hart | ... | drawings (13 episodes, 1956-1957) |
Series Music Department
| Tom McCall | ... | pianist (3 episodes, 1956) |
| Winifred Taylor | ... | pianist (1 episode, 1956) |