British star Roger Moore worked in this film as an extra for the only time in the same cast as the British actor Peter Graves. Neither of them ever worked with the American star Peter Graves, nor did any of the three ever work with American actor Roger Moore, who was the elder brother of actor Robert Young.
Daphne Barker's debut.
Final film of Leontine Sagan as a director.
Final film of Evelyn Darvell.