A mysterious criminal known as The Whispering Shadow commits crimes by means of a gang he controls by television and radio rays. Jack Norton, whose brother was murdered by The Whispering Shadow, suspects that the eerie Professor Strang - whose ghostly wax museum contains figures far too lifelike - may be involved in the crimes.
Professor Adam Anton Strang

Jack Foster

Vera Strang

Robert Raymond

Steinbeck

Sparks

J. D. Bradley

Prince Alexander, alias Mr. Jerome
