The kidnapped child is Viola Throckmorton. In the novel, her name is Viola Inselheim, daughter of a prominent Jewish businessman. This is one of several alterations of ethnicity in the film adaptation. "Dutch", a gangster, becomes "Hutch" in the film. This was a possible reference to New York mobster Dutch Schultz - born Arthur Simon Flegenheimer - who was killed in 1935.
The first of nine classic RKO movies featuring Simon Templar, The Saint.
This film was popular at the box office, making RKO a profit of $195,000 according to studio records.
Inspector Henry Fernack gives his address as 58 Washington Square South. At this address once stood the Arch Café where hangings had been conducted in the nineteenth century. Perhaps using this street and number was intended as inside dark humor. At present, the address is the site of New York University's Catholic Center.
Only time Louis Hayward would play The Saint in the RKO-produced series of films. He would play the character again in Le Saint défie Scotland Yard (1953) which was a British production distributed in the U.S. by RKO.