This was director William Witney's last production before leaving to serve in World War II, he actually shipped out before filming was complete. Witney arranged for his wife, Maxine Doyle, to be auditioned for a part as he would be leaving her in the United States for the duration of the war. It was also arranged that she was the only candidate for the role, but this was not revealed to her until she arrived for the audition. This was her first time acting role since the couple met on the set of an earlier serial, "S O S Coast Guard" (1937). This arrangement almost led to slight trouble in the relationship when Australian actress Constance Worth turned up at Witney's hotel room drunk. She was led away by a colleague before Maxine became aware of her presence.