Bud Geary wore the robes of the Crimson Ghost, but the voice that came out of the stationary skeletal mouth was that of I. Stanford Jolley, who was billed fourth in the cast. Another actor dubbed Jolley's character's response on the radio. Finally, a fourth actor played the Crimson Ghost's alter ego.
Duncan and Diana drive a 46 Buick. The Crimson Ghost drives a 35 Packard.
Popular early punk band The Misfits copied their logo from the poster for this movie. Frontman Glenn Danzig saw the poster and decided it fit the look of the band.