The signature whistling at the beginning of each of the Whistler movies was provided by Dorothy Roberts, backed by the theme's composer Wilbur Hatch and his orchestra.
This film series is based on the radio program "The Whistler" that aired on the CBS radio network from May 16, 1942 until September 22, 1955.
The third of eight "Whistler" films released by Columbia from 1944 to 1948.