'The Signalman' starred Douglas Skrief in the title role, Tom Bement was The Writer, Jeffrey Adams as The Engineer, and Justin Kapla as The Assistant. Based on the story by Charles Dickens. Audio adaptation by Jeffrey Adams. Sound design and post production by Jeffrey Adams.

Some Sound effects from the Freesound Project at Freesound.org. The Icebox Radio Theater's 'Mystery on the Air' is made possible in part by the voters of Minnesota through a grant from the Arrowhead Regional Arts Council, thanks to appropriations from the Minnesota State Legislature’s general and arts and cultural heritage funds. Copyright 2018 by the Icebox Radio Theater, all rights reserved.